Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Ben Sugerman"'
Autor:
Douglas L. Welch, Barbara Ercolano, Margaret Meixner, Joseph S. Gallagher, Ben Sugerman, Geoffrey C. Clayton, Roger Wesson, Jennifer E. Andrews, M. J. Barlow, J. Fabbri, Masaaki Otsuka
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 418:1285-1307
We present an analysis of multi-epoch observations of the Type II-P supernova SN 2004et. New and archival optical spectra of SN 2004et are used to study the evolution of the Hα and [O i] 6300-A line profiles between days 259 and 646. Mid-infrared im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b9981b03f3ef501a1919b81717c113d
https://doi.org/10.1111/j.1365-2966.2011.19577.x
https://doi.org/10.1111/j.1365-2966.2011.19577.x
Publikováno v:
The Astrophysical Journal. 699:1015-1023
We have carried out high-resolution spectroscopic observations of the carbon star V Hya, covering the 4.6 micron band of CO. These data, taken over 7 epochs, show that the circumstellar environment of V Hya consists of a complex high-velocity (HV) ou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53959f38d033720cc3b8f4eb9f7218d6
https://doi.org/10.1088/0004-637x/699/2/1015
https://doi.org/10.1088/0004-637x/699/2/1015
Autor:
Margaret Meixner, G. C. Van de Steene, N. Siódmiak, Toshiya Ueta, Ben Sugerman, Ryszard Szczerba
Publikováno v:
The Astrophysical Journal. 677:382-400
The results from a Hubble Space Telescope (HST) snapshot survey of post-AGB objects are shown. The aim of the survey is to complement existing HST images of PPN and to connect various types of nebulosities with physical and chemical properties of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6aa8b07d810d9633f9c7b57818c4c2ac
https://doi.org/10.1086/529115
https://doi.org/10.1086/529115
Autor:
Richard L. White, Ulisse Munari, Zolt Levay, R. Mark Wagner, Sumner Starrfield, Howard E. Bond, Arne Henden, Lisa A. Crause, Michael A. Dopita, Ben Sugerman, Nino Panagia, Misty Cracraft, William B. Sparks
Publikováno v:
The Astronomical Journal. 135:605-617
Following the outburst of the unusual variable star V838 Monocerotis in 2002, a spectacular light echo appeared. A light echo provides the possibility of direct geometric distance determination, because it should contain a ring of highly linearly pol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::200ac847e9eff97f468c1bf4a791d725
https://doi.org/10.1088/0004-6256/135/2/605
https://doi.org/10.1088/0004-6256/135/2/605
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 375:753-763
We present a study of the effects of clumping on the emergent spectral energy distribution (SED) from dusty supernova (SN) shells illuminated by a diffuse radiation source distributed throughout the medium. (...) The fully 3D radiation transport prob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5259de8998bade12bedd93861c4aed91
https://doi.org/10.1111/j.1365-2966.2006.11336.x
https://doi.org/10.1111/j.1365-2966.2006.11336.x
Autor:
Kelsie Krafton, E. Montiel, Roger Wesson, Ben Sugerman, Jennifer E. Andrews, Mikako Matsuura, Holger Drass, Geoffrey C. Clayton, M. J. Barlow
SN 2011ja was a bright (I = -18.3) Type II supernova occurring in the nearby edge on spiral galaxy NGC 4945. Flat-topped and multi-peaked H-alpha and H-beta spectral emission lines appear between 64 - 84 days post-explosion, indicating interaction wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fbf46fb66f2293fe8e2f3dd31897ffa5
http://arxiv.org/abs/1509.06379
http://arxiv.org/abs/1509.06379
Autor:
Geoffrey C. Clayton, Karl D. Gordon, Douglas L. Welch, J. E. Bowey, Margaret Meixner, Angela Speck, Tim Gledhill, Albert A. Zijlstra, Alexander G. G. M. Tielens, Nino Panagia, M. J. Barlow, Barbara Ercolano, Ben Sugerman, Martin Cohen, Martin Meyer, Michael W. Regan, J. Fabbri, Robert C. Kennicutt
Publikováno v:
Science, 313(5784), 196-200. AMER ASSOC ADVANCEMENT SCIENCE
We present late-time optical and mid-infrared observations of the Type-II supernova 2003gd in NGC 628. Mid-infrared excesses consistent with cooling dust in the ejecta are observed 499-678 days after outburst, and are accompanied by increasing optica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4db006047f5d6c620612461c7e3c322
https://doi.org/10.1126/science.1128131
https://doi.org/10.1126/science.1128131
Autor:
Ben Sugerman
Publikováno v:
The Astrophysical Journal. 632:L17-L20
Archival HST/ACS data reveal details of a light echo around SN 2003gd in the galaxy M74, only the fifth supernova around which resolved echoes have been reported. An echo is detected 0."3 from the supernova between PA 250--360, with fainter signal pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18c04867af77ebb3095d828ed089ba2c
https://doi.org/10.1086/497578
https://doi.org/10.1086/497578
Autor:
Ben Sugerman
Publikováno v:
The Astronomical Journal. 126:1939-1959
Scattered light echoes from variable and cataclysmic stars offer one of the most effective means to probe the structure and composition of circumtellar and interstellar media. I build a simple model of light-echo surface brightness by considering the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd6ba4a0223259abd0136e85ac37751d
https://doi.org/10.1086/378358
https://doi.org/10.1086/378358
Autor:
Ben Sugerman, Arlin P. S. Crotts
Publikováno v:
The Astrophysical Journal. 581:L97-L100
Using the technique of PSF-matched image subtraction, we have analyzed archival HST/WFPC2 data to reveal details of at least two light-echo structures, including some unknown before now, around SN 1993J in the galaxy M81. In particular, we see one pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8692e9544850a245f4dada04bb4ba359
https://doi.org/10.1086/346016
https://doi.org/10.1086/346016