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19942026
most citedThe Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package

5k citations

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213 papers · 1 filter

astro-ph2009★ 399 cited

WASP-12b: The hottest transiting planet yet discovered

L. Hebb, A. Collier-Cameron, B. Loeillet +15

We report on the discovery of WASP-12b, a new transiting extrasolar planet with and . The planet and host star propertie…

astro-ph2008★ 22 cited

Improved Neutron-Capture Element Abundances in Planetary Nebulae

N. C. Sterling, H. L. Dinerstein, S. Hwang +11

Spectroscopy of planetary nebulae (PNe) provides the means to investigate s-process enrichments of neutron(n)-capture elements that cannot be detected in asymptotic giant branch (A…

astro-ph2008★ 21 cited

PIC simulation of a strong double layer in a nonrelativistic plasma flow: Electron acceleration to ultrarelativistic speeds

M E Dieckmann, A Bret

Two charge- and current neutral plasma beams are modelled with a one-dimensional PIC simulation. The beams are uniform and unbounded. The relative speed between both beams is 0.4c.…

astro-ph2008★ 41 cited

Effects of accretion flow on the chemical structure in the inner regions of protoplanetary disks

H. Nomura, Y. Aikawa, Y. Nakagawa +1

We have studied the dependence of the profiles of molecular abundances and line emission on the accretion flow in the hot ($\ga 100$K) inner region of protoplanetary disks. The gas…

astro-ph2008★ 105 cited

Do all Flares have White Light Emission?

D. B. Jess, M. Mathioudakis, P. J. Crockett +1

High-cadence, multiwavelength optical observations of a solar active region (NOAA 10969), obtained with the Swedish Solar Telescope, are presented. Difference imaging of white ligh…

astro-ph2008★ 76 cited

Physical Properties of Main-Belt Comet P/2005 U1 (Read)

Henry H. Hsieh, David Jewitt, Masateru Ishiguro

The main-belt comets occupy dynamically asteroidal orbits in the main asteroid belt. Here we present physical observations of the second-known member of this population, P/2005 U1…

astro-ph2008★ 87 cited

VLT detection of a red supergiant progenitor of the type IIP supernova 2008bk

S. Mattila, S. J. Smartt, J. J. Eldridge +3

We report the identification of a source coincident with the position of the nearby type II-P supernova (SN) 2008bk in high quality optical and near-infrared pre-explosion images f…

astro-ph2008★ 69 cited

SN 2006gy: was it really extra-ordinary?

I. Agnoletto, S. Benetti, E. Cappellaro +12

We present an optical photometric and spectroscopic study of the very luminous type IIn SN 2006gy for a time period spanning more than one year. In photometry, a broad, bright (M_R…

astro-ph2008★ 69 cited

The sub-Jupiter mass transiting exoplanet WASP-11b

R. G. West, A. Collier Cameron, L. Hebb +25

We report the discovery of a sub-Jupiter mass exoplanet transiting a magnitude V=11.7 host star 1SWASP J030928.54+304024.7. A simultaneous fit to the transit photometry and radial-…

astro-ph2008★ 34 cited

RISE: a fast-readout imager for exoplanet transit timing

I. A. Steele, S. D. Bates, N. Gibson +5

By the precise timing of the low amplitude (0.005 - 0.02 magnitude) transits of exoplanets around their parent star it should be possible to infer the presence of other planetary b…

astro-ph2008★ 786 cited

The death of massive stars - I. Observational constraints on the progenitors of type II-P supernovae

S. J. Smartt, J. J. Eldridge, R. M. Crockett +1

We present the results of a 10.5 yr, volume limited (28 Mpc) search for supernova (SN) progenitor stars. We compile all SNe discovered within this volume (132, of which 27% are typ…

astro-ph2008★ 2 cited

6^Li in the atmosphere of GJ 117 Revisited

D. J. Christian, M. Mathioudakis, D. Jevremovic

Detection of 6^Li has been shown for energetic solar events, one chromospherically active binary, and several dwarf halo stars. We had previously found a 6^Li/7^Li = 0.03+/-0.01 fo…

astro-ph2008★ 37 cited

Core-collapse supernovae in low-metallicity environments and future all-sky transient surveys

D. R. Young, S. J. Smartt, S. Mattila +5

Aims: Massive stars in low-metallicity environments may produce exotic explosions such as long-duration gamma-ray bursts and pair-instability supernovae when they die as core-colla…

astro-ph2008★ 258 cited

The metamorphosis of Supernova SN2008D/XRF080109: a link between Supernovae and GRBs/Hypernovae

Paolo A. Mazzali, Stefano Valenti, Massimo Della Valle +38

The only supernovae (SNe) to have shown early gamma-ray or X-ray emission thus far are overenergetic, broad-lined Type Ic SNe (Hypernovae - HNe). Recently, SN 2008D shows several n…

astro-ph2008★ 13 cited

Searching for transit timing variations in transiting exoplanet systems

Marie Hrudková, Ian Skillen, Chris Benn +5

Searching for transit timing variations in the known transiting exoplanet systems can reveal the presence of other bodies in the system. Here we report such searches for two transi…

astro-ph2008★ 91 cited

Type Ib Supernova 2008D associated with the Luminous X-ray Transient 080109: An Energetic Explosion of a Massive Helium Star

Masaomi Tanaka, Nozomu Tominaga, Ken'ichi Nomoto +11

We present a theoretical model for supernova (SN) 2008D associated with the luminous X-ray transient 080109. The bolometric light curve and optical spectra of the SN are modelled b…

astro-ph2008★ 7 cited

Detection efficiency and photometry in supernova surveys - the Stockholm VIMOS Supernova Survey I

J. Melinder, S. Mattila, G. Östlin +2

The aim of the work presented in this paper is to test and optimise supernova detection methods based on the optimal image subtraction technique. The main focus is on applying the…

astro-ph2008★ 8 cited

Emission lines of Fe X in active region spectra obtained with the Solar Extreme-ultraviolet Research Telescope and Spectrograph

F P Keenan, D B Jess, K M Aggarwal +3

Fully relativistic calculations of radiative rates and electron impact excitation cross sections for Fe X are used to derive theoretical emission-line ratios involving transitions…

astro-ph2008★ 146 cited

The type IIb SN 2008ax: spectral and light curve evolution

A. Pastorello, M. M. Kasliwal, R. M. Crockett +12

We present spectroscopy and photometry of the He-rich supernova (SN) 2008ax. The early-time spectra show prominent P-Cygni H lines, which decrease with time and disappear completel…

astro-ph2008★ 96 cited

Optical and IR observations of SN 2002dj: some possible common properties of fast expanding SNe Ia

G. Pignata, S. Benetti, P. A. Mazzali +17

As part of the European Supernova Collaboration we obtained extensive photometry and spectroscopy of the type Ia SN 2002dj covering epochs from 11 days before to nearly two years a…

astro-ph2008★ 93 cited

WASP-10b: a 3M_J, gas-giant planet transiting a late-type K star

D. J. Christian, N. P. Gibson, E. K. Simpson +37

We report the discovery of WASP-10b, a new transiting extrasolar planet (ESP) discovered by the WASP Consortium and confirmed using NOT FIES and SOPHIE radial velocity data. A 3.09…

astro-ph2008★ 104 cited

WASP-14b: 7.3 Mj transiting planet in an eccentric orbit

Y. C. Joshi, D. Pollacco, A. Collier Cameron +38

We report the discovery of a 7.3 Mjup exoplanet WASP-14b, one of the most massive transiting exoplanets observed to date. The planet orbits the tenth-magnitude F5V star USNO-B1 111…

astro-ph2008★ 38 cited

The Araucaria Project: VLT-spectroscopy of blue massive stars in NGC 55

N. Castro, A. Herrero, M. Garcia +6

This is the first paper of a series devoted to studying the population of blue massive stars in NGC 55, a galaxy of the Sculptor group at a distance of about 2 Mpc. We have obtaine…

astro-ph2008★ 79 cited

WASP-7: The brightest transiting-exoplanet system in the Southern hemisphere

Coel Hellier, D. R. Anderson, M. Gillon +28

We report that a Jupiter-mass planet, WASP-7b, transits the V = 9.5 star HD197286 every 4.95 d. This is the brightest discovery from the WASP-South transit survey and the brightest…