Publications (73)
Deconvolution of JWST/MIRI Images: Applications to an AGN Model and GATOS Observations of NGC 5728
M. T. Leist, C. Packham, D. J. V. Rosario +32
The superb image quality, stability and sensitivity of the JWST permit deconvolution techniques to be pursued with a fidelity unavailable to ground-based observations. We present a…
High spatial resolution T-ReCS mid-infrared imaging of Luminous Infrared Galaxies
A. Alonso-Herrero, L. Colina, C. Packham +4
We present diffraction-limited (FWHM ~ 0.3arcsec) Gemini/T-ReCS mid-infrared (MIR: N-band or narrow-band at 8.7micron) imaging of four Luminous Infrared Galaxies (LIRGs) drawn from…
Gemini Mid-IR Polarimetry of NGC1068: Polarized Structures Around the Nucleus
C. Packham, S. Young, R. S. Fisher +7
We present diffraction limited, 10um imaging polarimetry data for the central regions of the archetypal Seyfert AGN, NGC1068. The position angle of polarization is consistent with…
A radio-jet driven outflow in the Seyfert 2 galaxy NGC 2110?
L. Peralta de Arriba, A. Alonso-Herrero, S. GarcÃa-Burillo +16
We present a spatially-resolved study of the ionised gas in the central 2 kpc of the Seyfert 2 galaxy NGC 2110 and investigate the role of its moderate luminosity radio jet (kineti…
High Resolution Imaging of the Magnetic Field in the central parsec of the Galaxy
P. F. Roche, E. Lopez-Rodriguez, C. M. Telesco +2
We discuss a high resolution (FWHM~ 0.45 arcsec) image of the emissive polarization from warm dust in the minispiral in the Galactic Centre and discuss the implications for the mag…
Mid-infrared, spatially-resolved spectroscopy of the nucleus of the Circinus galaxy
P. F. Roche, C. Packham, C. M. Telesco +5
High spatial resolution spectroscopy at 8-13microns with T-ReCS on Gemini-S has revealed striking variations in the mid-infrared emission and absorption in the nucleus of the Circi…
Isotropic Mid-Infrared Emission from the Central 100 pc of Active Galaxies
N. A. Levenson, J. T. Radomski, C. Packham +3
Dust reprocesses the intrinsic radiation of active galactic nuclei (AGNs) to emerge at longer wavelengths. The observed mid-infrared (MIR) luminosity depends fundamentally on the l…
Born Again Protoplanetary Disk Around Mira B
M. J. Ireland, J. D. Monnier, P. G. Tuthill +6
The Mira AB system is a nearby (~107 pc) example of a wind accreting binary star system. In this class of system, the wind from a mass-losing red giant star (Mira A) is accreted on…
Investigating the sensitivity of observed spectral energy distributions to clumpy torus properties in Seyfert galaxies
C. Ramos Almeida, A. Alonso-Herrero, N. A. Levenson +5
We present nuclear spectral energy distributions (SEDs) from 1 to 18 micron of a small sample of nearby, nearly face-on and undisturbed Seyfert galaxies without prominent nuclear d…
Mid-Infrared T-ReCS Spectroscopy of Local LIRGs
T. Diaz-Santos, A. Alonso-Herrero, L. Colina +3
We present T-ReCS high spatial resolution N-band (8-13 micron) spectroscopy of the central regions (a few kpc) of 3 local LIRGs. The nuclear spectra show deep 9.7 micron silicate a…
Testing the Unification Model for AGN in the Infrared: are the obscuring tori of Type 1 and 2 Seyferts different?
C. Ramos Almeida, N. A. Levenson, A. Alonso-Herrero +7
We present new mid-infrared (MIR) imaging data for three Type-1 Seyfert galaxies obtained with T-ReCS on the Gemini-South Telescope at subarcsecond resolution. Our aim is to enlarg…
A Photometric Study of the Ages and Metallicities of Early-type Galaxies in A2218
Ian Smail, Harald Kuntschner, T. Kodama +4
We present deep optical and near-infrared imaging of the rich cluster A2218 at z=0.17. Our optical imaging comes from new multicolour Hubble Space Telescope WFPC2 observations in t…
The Galaxy Activity, Torus and Outflow Survey (GATOS): II. Torus and polar dust emission in nearby Seyfert galaxies
A. Alonso-Herrero, S. GarcÃa-Burillo, S. F. Hoenig +30
We compare mid-IR and ALMA far-IR images of 12 nearby Seyferts selected from GATOS. The mid-IR unresolved emission contributes more than 60% of the nuclear emission in most galaxie…
A nuclear molecular outflow in the Seyfert galaxy NGC3227
A. Alonso-Herrero, S. Garcia-Burillo, M. Pereira-Santaella +24
We present ALMA observations of the CO(2-1) and CO(3-2) molecular gas transitions and associated (sub)-mm continua of the nearby Seyfert 1.5 galaxy NGC3227 with angular resolutions…
Optical and Infrared Spectroscopy of the type IIn SN 1998S : Days 3-127
A. Fassia, W. P. S. Meikle, N. Chugai +14
We present contemporary infrared and optical spectroscopic observations of the type IIn SN 1998S for the period between 3 and 127 days after discovery. In the first week the spectr…
HST and Spitzer point source detection and optical extinction in powerful narrow-line radio galaxies
E. A. RamÃrez, C. N. Tadhunter, D. Dicken +4
We present the analysis of infrared HST and Spitzer data for a sample of 13 FRII radio galaxies at 0.03<z<0.11 that are classified as narrow-line radio galaxies (NLRG). In the cont…
Spatially-resolved mid-infrared spectroscopy of NGC 1068: the nature and distribution of the nuclear material
R. E. Mason, T. R. Geballe, C. Packham +4
We present spatially-resolved, near-diffraction-limited 10 micron spectra of the nucleus of the Seyfert 2 galaxy NGC 1068, obtained with Michelle, the mid-IR imager and spectromete…
Infrared polarimetry of Mrk 231: Scattering off hot dust grains in the central core
E. Lopez-Rodriguez, C. Packham, T. J. Jones +13
We present high-angular (0.170.35 arcsec) resolution imaging polarimetric observations of Mrk 231 in the 3.1 m filter using MMT-Pol on the 6.5-m MMT, and in the 8.7 m, 1…
A deep look at the nuclear region of UGC 5101 through high angular resolution mid-IR data with GTC/CanariCam
M. MartÃnez-Paredes, A. Alonso-Herrero, I. Aretxaga +13
We present an analysis of the nuclear infrared (IR, 1.6 to 18 m) emission of the ultraluminous IR galaxy UGC 5101 to derive the properties of its active galactic nucleus (AGN)…
A mid-IR survey of local AGN with GTC/CanariCam
A. Alonso-Herrero, C. Packham
We describe a mid-infrared (MIR) survey of local AGN to be conducted with the CanariCam instrument on the Gran Telescopio Canarias (GTC). We will obtain MIR imaging and spectroscop…
Hypercubes of AGN Tori (HYPERCAT) -- I. Models and Image Morphology
R. Nikutta, E. Lopez-Rodriguez, K. Ichikawa +4
Near- and mid-infrared interferometers have resolved the dusty parsec-scale obscurer (torus) around nearby active galactic nuclei (AGNs). With the arrival of extremely large single…
The Galaxy Activity, Torus, and Outflow Survey (GATOS). V: Unveiling PAH survival and resilience in the circumnuclear regions of AGN with JWST
I. GarcÃa-Bernete, D. Rigopoulou, F. R. Donnan +30
We analyze JWST MIRI/MRS observations of the infrared PAH bands in the nuclear and circumnuclear regions of local AGN from the GATOS Survey. In this work, we examine the PAH proper…
AGN feedback in action in the molecular gas ring of the Seyfert galaxy NGC7172
A. Alonso-Herrero, S. Garcia-Burillo, M. Pereira-Santaella +14
We present new ALMA observations of the CO(3-2) transition and 854micron continuum at 0.06-0.3" resolution, together with new VLT/SINFONI observations of NGC7172. This is a luminou…
Polarized Mid-Infrared Synchrotron Emission in the Core of Cygnus A
E. Lopez-Rodriguez, C. Packham, C. Tadhunter +10
We present high-angular (~0.4") resolution mid-infrared (MIR) polarimetric observations in the 8.7 m and 11.6 m filters of Cygnus A using CanariCam on the 10.4-m Gran Teles…
The nuclear and extended mid-infrared emission of Seyfert galaxies
I. GarcÃa-Bernete, C. Ramos Almeida, J. A. Acosta-Pulido +10
We present subarcsecond resolution mid-infrared (MIR) images obtained with 8-10 m-class ground-based telescopes of a complete volume-limited (DL<40 Mpc) sample of 24 Seyfert galaxi…
Dust in active galactic nuclei. Mid-infrared T-ReCS/Gemini spectra using the new RedCan pipeline
O. Gonzalez-Martin, J. M. Rodriguez-Espinosa, T. Diaz-Santos +6
The unified model of active galactic nuclei (AGN) claims that the properties of AGN depend on the viewing angle of the observer with respect to a toroidal distribution of dust surr…
Molecular gas stratification and disturbed kinematics in the Seyfert galaxy MCG-05-23-16 revealed by JWST and ALMA
D. Esparza-Arredondo, C. Ramos Almeida, A. Audibert +30
Understanding the processes that drive the morphology and kinematics of molecular gas in galaxies is crucial for comprehending star formation and, ultimately, galaxy evolution. Usi…
Hypercubes of AGN Tori (HYPERCAT) -- II. Resolving the Torus with Extremely Large Telescopes
R. Nikutta, E. Lopez-Rodriguez, K. Ichikawa +4
Recent infrared interferometric observations revealed sub-parsec scale dust distributions around active galactic nuclei (AGNs). Using images of CLUMPY torus models and NGC 1068 as…
Highly polarized structures in the near-nuclear regions of Cygnus A: intrinsic anisotropy within the cones?
C. N. Tadhunter, W. Sparks, D. J. Axon +6
We present near-IR imaging polarimetry observations of the nucleus of Cygnus A, taken with the NICMOS camera of the HST at a wavelength of 2.0 microns.These maps reveal a highly co…
The Origin of the Silicate Emission Features in the Seyfert 2 Galaxy, NGC 2110
R. E. Mason, N. A. Levenson, Y. Shi +5
The unified model of active galactic nuclei (AGN) predicts silicate emission features at 10 and 18 microns in type 1 AGN, and such features have now been observed in objects rangin…
Nuclear star formation activity and black hole accretion in nearby Seyfert galaxies
P. Esquej, A. Alonso-Herrero, O. González-MartÃn +10
Recent theoretical and observational works indicate the presence of a correlation between the star formation rate (SFR) and the active galactic nuclei (AGN) luminosity (and, theref…
A biconical ionised gas outflow and evidence for positive feedback in NGC 7172 uncovered by MIRI/JWST
L. Hermosa Muñoz, A. Alonso-Herrero, M. Pereira-Santaella +35
We present observations of the type-2 Seyfert NGC7172 obtained with the medium-resolution spectrometer (MRS) of the Mid-Infrared Instrument (MIRI) on board of the JWST. This galaxy…
Estimations of the magnetic field strength in the torus of AGN using near-infrared polarimetry
E. Lopez-Rodriguez, C. Packham, S. Young +7
An optically and geometrically thick torus obscures the central engine of Active Galactic Nuclei (AGN) from some lines of sight. From a magnetohydrodynamical framework, the torus c…
Mid-infrared imaging- and spectro-polarimetric subarcsecond observations of NGC 1068
E. Lopez-Rodriguez, C. Packham, P. F. Roche +10
We present sub-arcsecond 7.513 m imaging- and spectro-polarimetric observations of NGC 1068 using CanariCam on the 10.4-m Gran Telescopio CANARIAS. At all wavelengths, we fi…
Testing the AGN Unification Model in the Infrared
Cristina Ramos Almeida, N. A. Levenson, A. Alonso-Herrero +7
We present near-to-mid-infrared spectral energy distributions (SEDs) for 21 Seyfert galaxies, using subarcsecond resolution imaging data. Our aim is to compare the properties Seyfe…
An HST Morphological Survey of Faint EROs
David G. Gilbank, Ian Smail, R. J. Ivison +1
We present the results from a survey for Extremely Red Objects (EROs) in deep, high resolution optical images taken from the Hubble Space Telescope (HST) Medium Deep Survey. We hav…
The first spectroscopic IR reverberation programme on Mrk 509
J. A. J. Mitchell, M. J. Ward, D. Kynoch +12
Near IR spectroscopic reverberation of Active Galactic Nuclei (AGN) potentially allows the infrared (IR) broad line region (BLR) to be reverberated alongside the disc and dust cont…
Torus model properties of an ultra-hard X-ray selected sample of Seyfert galaxies
I. GarcÃa-Bernete, C. Ramos Almeida, A. Alonso-Herrero +15
We characterize for the first time the torus properties of an ultra-hard X-ray (14-195 keV) volume-limited (DL<40 Mpc) sample of 24 Seyfert (Sy) galaxies (BCS40 sample). The sample…
Resolving the nuclear dust distribution of the Seyfert 2 galaxy NGC 3081
C. Ramos Almeida, M. Sanchez-Portal, A. M. Perez-Garcia +13
We report far-infrared (FIR) imaging of the Seyfert 2 galaxy NGC 3081 in the range 70-500 micron, obtained with an unprecedented angular resolution, using the Herschel Space Observ…
Mid-infrared resolution of a 3 AU-radius debris disk around Zeta Leporis
M. M. Moerchen, C. M. Telesco, C. Packham +1
We present subarcsecond-resolution mid-infrared images of the debris disk surrounding the 230 Myr- old A star Zeta Lep. Our data obtained with T-ReCS at Gemini South show the sourc…
Near-Infrared Polarimetric Adaptive Optics Observations of NGC 1068: A torus created by a hydromagnetic outflow wind
E. Lopez-Rodriguez, C. Packham, T. J. Jones +12
We present J' and K' imaging linear polarimetric adaptive optics observations of NGC 1068 using MMT-Pol on the 6.5-m MMT. These observations allow us to study the torus from a magn…
The Nature of the Near-IR Core Source in 3C 433
Edgar A. Ramirez, C. N. Tadhunter, D. Axon +4
We report the analysis of near-infrared imaging, polarimetric and spectroscopic observations of the powerful radio galaxy 3C433, obtained with the HST and UKIRT telescopes. The hig…
High-resolution 25 μm imaging of the disks around Herbig Ae/Be stars
M. Honda, K. Maaskant, Y. K. Okamoto +12
We imaged circumstellar disks around 22 Herbig Ae/Be stars at 25 μm using Subaru/COMICS and Gemini/T-ReCS. Our sample consists of equal numbers of objects belonging to the two cat…
The Galaxy Activity, Torus, and Outflow Survey (GATOS). III: Revealing the inner icy structure in local AGN
I. GarcÃa-Bernete, A. Alonso-Herrero, D. Rigopoulou +24
We use JWST/MIRI MRS spectroscopy of a sample of six local obscured type 1.9/2 active galactic nuclei (AGN) to compare their nuclear mid-IR absorption bands with the level of nucle…
Constraints on the substellar companions in wide orbits around the Barnard's Star from CanariCam mid-infrared imaging
B. Gauza, V. J. S. Béjar, R. Rebolo +6
We have performed mid-infrared imaging of Barnard's Star, one of the nearest stars to the Sun, using CanariCam on the 10.4 m Gran Telescopio Canarias. We aim to investigate an area…
The complex evolutionary paths of local infrared bright galaxies: a high angular resolution mid-infrared view
A. Alonso-Herrero, R. Poulton, P. F. Roche +15
We investigate the evolutionary connection between local IR-bright galaxies () and quasars. We use high angular resolution ( 0.3-0.4 arcsec…
The Galaxy Activity, Torus, and Outflow Survey (GATOS): N. Unveiling physical processes in local active galaxies. Unsupervised hierarchical clustering of JWST MIRI/MRS observations
L. Hermosa Muñoz, J. R. González Fernández, A. Alonso-Herrero +23
With the rise of the integral field spectroscopy, we are currently dealing with large amounts of spatially resolved data, whose analysis has become challenging, especially when obs…
Near-infrared Hubble Space Telescope polarimetry of a complete sample of narrow-line radio galaxies
E. A. RamÃrez, C. N. Tadhunter, D. Axon +5
We present an analysis of 2.05 m Hubble Space Telescope (HST) polarimetric data for a sample of 13 nearby Fanaroff-Riley type II (FRII) 3CR radio sources () that a…
GATOS: missing molecular gas in the outflow of NGC5728 revealed by JWST
R. Davies, T. Shimizu, M. Pereira-Santaella +49
The ionisation cones of NGC5728 have a deficit of molecular gas based on millimetre observations of CO(2-1) emission. Although photoionisation from the active nucleus may lead to s…
The dusty tori of nearby QSOs as constrained by high-resolution mid-IR observations
M. MartÃnez-Paredes, I. Aretxaga, A. Alonso-Herrero +13
We present mid-infrared (MIR, 7.5-13.5 m) imaging and spectroscopy observations obtained with the CanariCam (CC) instrument on the 10.4m Gran Telescopio CANARIAS for a sample o…
A High Spatial Resolution Mid-Infrared Spectroscopic Study of the Nuclei and Star-Forming Regions in Luminous Infrared Galaxies
T. Diaz-Santos, A. Alonso-Herrero, L. Colina +5
We present a high spatial (diffraction-limited) resolution (~0.3") mid-infrared (MIR) spectroscopic study of the nuclei and star-forming regions of 4 local luminous infrared galaxi…
Crystalline Silicate Emission in the Protostellar Binary Serpens--SVS20
D. R. Ciardi, C. M. Telesco, C. Packham +5
We present spatially resolved mid-infrared spectroscopy of the class I/flat-spectrum protostellar binary system SVS20 in the Serpens cloud core. The spectra were obtained with the…
Resolving the nuclear obscuring disk in the Compton-thick Seyfert galaxy NGC5643 with ALMA
A. Alonso-Herrero, M. Pereira-Santaella, S. GarcÃa-Burillo +19
We present ALMA Band 6 CO(2--1) line and rest-frame 232GHz continuum observations of the nearby Compton-thick Seyfert galaxy NGC5643 with angular resolutions 0.11-0.26arcsec…
A mid-infrared view of the inner parsecs of the Seyfert galaxy Mrk 1066 using CanariCam/GTC
C. Ramos Almeida, A. Alonso-Herrero, P. Esquej +10
We present mid-infrared (MIR) imaging and spectroscopic data of the Seyfert 2 galaxy Mrk 1066 obtained with CanariCam (CC) on the 10.4 m Gran Telescopio CANARIAS (GTC). The galaxy…
Silicate absorption in heavily obscured galaxy nuclei
P. F. Roche, C. Packham, D. K. Aitken +1
Spectroscopy at 8-13 microns with T-ReCS on Gemini-S is presented for 3 galaxies with substantial silicate absorption features, NGC 3094, NGC 7172 and NGC 5506. In the galaxies wit…
Mid-Infrared Imaging of the Herbig Ae Star AB Aurigae: Extended Emission on Several Scales
N. Marinas, C. M. Telesco, R. S. Fisher +2
We present high sensitivity sub-arcsecond resolution images of the Herbig Ae star AB Aurigae at 11.6 and 18.5 microns taken with Michelle on Gemini North. Bright extended dust emis…
High Resolution mid-Infrared Imaging of SN 1987A
P. Bouchet, J. M. De Buizer, N. B. Suntzeff +4
Using the Thermal-Region Camera and Spectrograph (T-ReCS) attached to the Gemini South 8m telescope, we have detected and resolved 10 micron emission at the position of the inner e…
The origin of the mid-infrared nuclear polarization of active galactic nuclei
E. Lopez-Rodriguez, A. Alonso-Herrero, T. Diaz-Santos +10
We combine new (NGC 1275, NGC 4151, and NGC 5506) and previously published (Cygnus A, Mrk 231, and NGC 1068) sub-arcsecond resolution mid-infrared (MIR; 8-13 m) imaging- and sp…
A mid-infrared statistical investigation of clumpy torus model predictions
J. GarcÃa-González, A. Alonso-Herrero, S. F. Hönig +7
We present new calculations of the CAT3D clumpy torus models, which now include a more physical dust sublimation model as well as AGN anisotropic emission. These new models allow g…
Nuclear 11.3m PAH emission in local active galactic nuclei
A. Alonso-Herrero, C. Ramos Almeida, P. Esquej +15
We present Gran Telescopio CANARIAS CanariCam 8.7m imaging and 7.5-13m spectroscopy of six local systems known to host an active galactic nucleus (AGN) and have nuclear sta…
HST infrared imaging polarimetry of Centaurus A: implications for the unified scheme and the existence of a mis-directed BL Lac nucleus
A. Capetti, E. J. Schreier, D. J. Axon +6
We report results from HST/NICMOS 2 micron imaging polarimetry of the central region of Centaurus A. In the vicinity of the nucleus we observe a complex polarization structure whic…
A mid-infrared spectroscopic atlas of local active galactic nuclei on sub-arcsecond resolution using GTC/CanariCam
A. Alonso-Herrero, P. Esquej, P. F. Roche +15
We present an atlas of mid-infrared (mid-IR) ~7.5-13micron spectra of 45 local active galactic nuclei (AGN) obtained with CanariCam on the 10.4m Gran Telescopio CANARIAS (GTC) as p…
Probing the Nuclear and Circumnuclear Activity of NGC1365 in the Infrared
A. Alonso-Herrero, M. Sanchez-Portal, C. Ramos Almeida +12
We present new far-infrared (70-500micron) Herschel PACS and SPIRE imaging observations as well as new mid-IR Gemini/T-ReCS imaging (8.7 and 18.3micron) and spectroscopy of the inn…
Deciphering the imprint of AGN feedback in Seyfert galaxies: Nuclear-scale molecular gas deficits
S. GarcÃa-Burillo, E. K. S. Hicks, A. Alonso-Herrero +26
We use a sample of 64 nearby (D=7-45 Mpc) disk galaxies including 45 AGN and 19 non-AGN, that have high spatial resolution multiline CO observations obtained with the ALMA and/or P…
The first spectroscopic dust reverberation programme on active galactic nuclei: the torus in NGC 5548
H. Landt, M. J. Ward, D. Kynoch +16
We have recently initiated the first spectroscopic dust reverberation programme on active galactic nuclei (AGN) in the near-infrared. Spectroscopy enables measurement of dust prope…
Dust and PAH emission in the star-forming active nucleus of NGC 1097
R. E. Mason, N. A. Levenson, C. Packham +4
The nucleus of the nearby galaxy, NGC 1097, is known to host a young, compact (r < 9 parsec) nuclear star cluster as well as a low-luminosity active galactic nucleus (AGN). It has…
Uncovering the deeply embedded AGN activity in the nuclear regions of the interacting galaxy Arp299
A. Alonso-Herrero, P. F. Roche, P. Esquej +14
We present mid-infrared (MIR) 8-13micron spectroscopy of the nuclear regions of the interacting galaxy Arp299 (IC694+NGC3690) obtained with CanariCam (CC) on the 10.4m Gran Telesco…
A high angular resolution view of the PAH emission in Seyfert galaxies using JWST/MRS data
I. GarcÃa-Bernete, D. Rigopoulou, A. Alonso-Herrero +16
Polycyclic Aromatic Hydrocarbons (PAHs) are carbon-based molecules that are ubiquitous in a variety of astrophysical objects and environments. In this work, we use JWST/MIRI MRS sp…
The nuclear and extended infrared emission of the Seyfert galaxy NGC 2992 and the interacting system Arp 245
I. GarcÃa-Bernete, C. Ramos Almeida, J. A. Acosta-Pulido +14
We present subarcsecond resolution infrared (IR) imaging and mid-IR spectroscopic observations of the Seyfert 1.9 galaxy NGC 2992, obtained with the Gemini North Telescope and the…
The Nuclear Infrared Emission of Low-Luminosity Active Galactic Nuclei
R. E. Mason, E. Lopez-Rodriguez, C. Packham +9
We present high-resolution mid-infrared (MIR) imaging, nuclear spectral energy distributions (SEDs) and archival Spitzer spectra for 22 low-luminosity active galactic nuclei (LLAGN…
Looking for extended nuclear emission in a sample of nearby QSOs
M. MartÃnez-Paredes, I. Aretxaga, A. Alonso-Herrero +2
We present MIR sub-arcsec observations of Mrk 1383, a nearby QSO, part of a sample of nearby QSOs currently being observed with the 10.4 m Gran Telescopio de Canarias (GTC). The ra…
The Galaxy Activity, Torus and Outflow Survey (GATOS) I. ALMA images of dusty molecular tori in Seyfert galaxies
S. GarcÃa-Burillo, A. Alonso-Herrero, C. Ramos Almeida +32
We present the first results of the Galaxy Activity, Torus and Outflow Survey (GATOS), a project aimed at understanding the properties of the dusty molecular tori and their connect…
Spectral Energy Distributions and Light Curves of GRB 990123 and its Afterglow
T. J. Galama, M. S. Briggs, R. A. M. J. Wijers +38
Gamma-ray bursts (GRBs) are thought to result from the interaction of an extremely relativistic outflow interacting with a small amount of material surrounding the site of the expl…