665 citations · 6.5k across the 69 of their papers we have counts for
69 papers
The triple-peaked afterglow of GRB 210731A from X-ray to radio frequencies
S. de Wet, T. Laskar, P. J. Groot +18
GRB 210731A was a long-duration gamma-ray burst discovered by the Burst Alert Telescope (BAT) aboard the Neil Gehrels Swift observatory. Swift triggered the wide-field, robotic Mee…
SN 2022ann: A type Icn supernova from a dwarf galaxy that reveals helium in its circumstellar environment
K. W. Davis, K. Taggart, S. Tinyanont +64
We present optical and near-infrared (NIR) observations of the Type Icn supernova (SN Icn) 2022ann, the fifth member of its newly identified class of SNe. Its early optical spectra…
Photometric and spectroscopic analysis of the Type II SN 2020jfo with a short plateau
B. Ailawadhi, R. Dastidar, K. Misra +34
We present high-cadence photometric and spectroscopic observations of SN~2020jfo in ultraviolet and optical/near-infrared bands starting from to days after the…
Dust Reverberation Mapping and Light-Curve Modelling of Zw229-015
E. Guise, S. F. Hönig, V. Gorjian +12
Multiwavelength variability studies of active galactic nuclei (AGN) can be used to probe their inner regions which are not directly resolvable. Dust reverberation mapping (DRM) est…
Observations of the luminous red nova AT 2021biy in the nearby galaxy NGC 4631
Y. -Z. Cai, A. Pastorello, M. Fraser +73
We present an observational study of the luminous red nova (LRN) AT\,2021biy in the nearby galaxy NGC\,4631. The field of the object was routinely imaged during the pre-eruptive st…
A 5% measurement of the Hubble constant from Type II supernovae
T. de Jaeger, L. Galbany, A. G. Riess +4
The most stringent local measurement of the Hubble-Lemaître constant from Cepheid-calibrated Type Ia supernovae (SNe~Ia) differs from the value inferred via the cosmic microwave ba…
MUPHOTEN : a MUlti-band PHOtometry Tool for TElescope Network
P. A. Duverne, S. Antier, S. Basa +6
The early and complete temporal characterization of optical, fast, transient sources requires continuous and multiband observations over different timescales (hours to months). For…
A WC/WO star exploding within an expanding carbon-oxygen-neon nebula
A. Gal-Yam, R. Bruch, S. Schulze +46
The final explosive fate of massive stars, and the nature of the compact remnants they leave behind (black holes and neutron stars), are major open questions in astrophysics. Many…
The Early Phases of Supernova 2020pni: Shock-Ionization of the Nitrogen-Enriched Circumstellar Material
G. Terreran, W. V. Jacobson-Galan, J. H. Groh +20
We present multiwavelength observations of the Type II SN 2020pni. Classified at days after explosion, the object showed narrow (FWHM $<250\,\textrm{km}\,\textrm{s}^{-1}…
Studying the Extreme Behaviour of 1ES 2344+51.4
A. Arbet-Engels, M. Manganaro, M. Cerruti +9
The BL Lac type object 1ES 2344+51.4 (redshift ) was one of the first sources to be included in the extreme high-peaked BL Lac (EHBL) family. EHBLs are characterised by a…
Studying the Ultraviolet Spectrum of the First Spectroscopically Confirmed Supernova at redshift two
M. Smith, M. Sullivan, R. C. Nichol +87
We present observations of DES16C2nm, the first spectroscopically confirmed hydrogen-free superluminous supernova (SLSN-I) at redshift z~2. DES16C2nm was discovered by the Dark Ene…
Stochastic modeling of multiwavelength variability of the classical BL Lac object OJ 287 on timescales ranging from decades to hours
A. Goyal, L. Stawarz, S. Zola +109
We present the results of our power spectral density analysis for the BL Lac object OJ\,287, utilizing the {\it Fermi}-LAT survey at high-energy -rays, {\it Swift}-XRT in X-rays…
CLASH: Accurate Photometric Redshifts with 14 HST bands in Massive Galaxy Cluster Cores
A. Molino, N. Benítez, B. Ascaso +41
We present accurate photometric redshifts for galaxies observed by the Cluster Lensing and Supernova survey with Hubble (CLASH). CLASH observed 25 massive galaxy cluster cores with…
Swift monitoring of NGC 4151: Evidence for a Second X-ray/UV Reprocessing
R. Edelson, J. Gelbord, E. Cackett +41
Swift monitoring of NGC 4151 with ~6 hr sampling over a total of 69 days in early 2016 is used to construct light curves covering five bands in the X-rays (0.3-50 keV) and six in t…
Space Telescope and Optical Reverberation Mapping Project. VII. Understanding the UV anomaly in NGC 5548 with X-Ray Spectroscopy
S. Mathur, A. Gupta, K. Page +147
During the Space Telescope and Optical Reverberation Mapping Project (STORM) observations of NGC 5548, the continuum and emission-line variability became de-correlated during the s…
GRB 161219B-SN 2016jca: a powerful stellar collapse
C. Ashall, P. A. Mazzali, E. Pian +26
We report observations and analysis of the nearby gamma-ray burst GRB\,161219B (redshift ) and the associated Type Ic supernova (SN) 2016jca. GRB\,161219B had an isotropi…
Space Telescope and Optical Reverberation Mapping Project VI: reverberating Disk Models for NGC 5548
D. Starkey, Keith Horne, M. M. Fausnaugh +90
We conduct a multiwavelength continuum variability study of the Seyfert 1 galaxy NGC 5548 to investigate the temperature structure of its accretion disk. The 19 overlapping continu…
Extensive Spectroscopy and Photometry of the Type IIP Supernova 2013ej
G. Dhungana, R. Kehoe, J. Vinko +32
We present extensive optical (, , and open CCD) and near-infrared () photometry for the very nearby Type IIP SN ~2013ej extending from +1 to +461 days after…
Optical and X-ray early follow-up of ANTARES neutrino alerts
S. Adrian-Martinez, M. Ageron, A. Albert +137
High-energy neutrinos could be produced in the interaction of charged cosmic rays with matter or radiation surrounding astrophysical sources. Even with the recent detection of extr…
Early-Time Flux Measurements of SN 2014J Obtained with Small Robotic Telescopes: Extending the AAVSO Light Curve
B. Poppe, T. Plaggenborg, W. Zheng +4
In this work, early-time photometry of supernova (SN) 2014J is presented, extending the AAVSO CCD database to prediscovery dates. The applicability of NASA's small robotic MicroObs…
500 Days of SN 2013dy: spectra and photometry from the ultraviolet to the infrared
Y. -C. Pan, R. J. Foley, M. Kromer +23
SN 2013dy is a Type Ia supernova for which we have compiled an extraordinary dataset spanning from 0.1 to ~ 500 days after explosion. We present 10 epochs of ultraviolet (UV) throu…
Time-Varying Potassium in High-Resolution Spectra of the Type Ia Supernova 2014J
M. L. Graham, S. Valenti, B. J. Fulton +9
We present a time series of the highest resolution spectra yet published for the nearby Type Ia supernova (SN) 2014J in M82. They were obtained at 11 epochs over 33 days around pea…
A Trio of GRB-SNe: GRB 120729A, GRB 130215A / SN 2013ez and GRB 130831A / SN 2013fu
Z. Cano, A. de Ugarte Postigo, A. Pozanenko +62
We present optical and near-infrared (NIR) photometry for three gamma-ray burst supernovae (GRB-SNe): GRB 120729A, GRB 130215A / SN 2013ez and GRB 130831A / SN 2013fu. In the case…
The MUSIC of CLASH: predictions on the concentration-mass relation
M. Meneghetti, E. Rasia, J. Vega +42
We present the results of a numerical study based on the analysis of the MUSIC-2 simulations, aimed at estimating the expected concentration-mass relation for the CLASH cluster sam…