A
A. S. Moskvitin
Researcher at Special Astrophysical Observatory
Publications - 30
Citations - 1383
A. S. Moskvitin is an academic researcher from Special Astrophysical Observatory. The author has contributed to research in topics: Supernova & Light curve. The author has an hindex of 12, co-authored 25 publications receiving 1309 citations. Previous affiliations of A. S. Moskvitin include Russian Academy of Sciences.
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Journal ArticleDOI
A γ-ray burst at a redshift of z ≈ 8.2
Nial R. Tanvir,D. B. Fox,Andrew J. Levan,Edo Berger,K. Wiersema,Johan P. U. Fynbo,A. Cucchiara,Thomas Krühler,N. Gehrels,Joshua S. Bloom,Jochen Greiner,P. A. Evans,E. Rol,F. Olivares,Jens Hjorth,Pall Jakobsson,Jay Farihi,Richard Willingale,R. L. C. Starling,S. B. Cenko,Daniel A. Perley,Justyn R. Maund,J. Duke,Ralph A. M. J. Wijers,Andy Adamson,A. Allan,Malcolm N. Bremer,David N. Burrows,A. J. Castro-Tirado,B. Cavanagh,A. de Ugarte Postigo,Michael A. Dopita,T. A. Fatkhullin,A. S. Fruchter,Ryan J. Foley,Javier Gorosabel,J. A. Kennea,T. Kerr,S. Klose,Hans A. Krimm,Hans A. Krimm,V. N. Komarova,Shrinivas R. Kulkarni,A. S. Moskvitin,Carole Mundell,Tim Naylor,K. L. Page,Bryan E. Penprase,M. Perri,Philipp Podsiadlowski,Kathy Roth,R. E. Rutledge,T. Sakamoto,Patricia Schady,Brian P. Schmidt,Alicia M. Soderberg,Jesper Sollerman,Jesper Sollerman,Andrew W. Stephens,G. Stratta,T. N. Ukwatta,T. N. Ukwatta,Darach Watson,E. Westra,T. Wold,Christian Wolf +65 more
TL;DR: In this paper, the authors reported that GRB 090423 lies at a redshift of z approximate to 8.2, implying that massive stars were being produced and dying as GRBs similar to 630 Myr after the Big Bang.
Journal ArticleDOI
GRB170817A associated with GW170817: multifrequency observations and modeling of prompt gamma-ray emission
Alexei Pozanenko,Maxim V. Barkov,P. Minaev,A. Volnova,E. Mazaeva,A. S. Moskvitin,Maxim A. Krugov,V. A. Samodurov,V. M. Loznikov,Maxim Lyutikov +9 more
Abstract: We present our observations of electromagnetic transients associated with GW170817/GRB 170817A using optical telescopes of Chilescope observatory and Big Scanning Antenna (BSA) of Pushchino Radio Astronomy Observatory at 110MHz. The Chilescope observatory detected an optical transient of $\sim19^m$ on the third day in the outskirts of the galaxy NGC 4993; we continued observations following its rapid decrease. We put an upper limit of $1.5\times10^{4}$ Jy on any radio source with a duration of 10-60 s which may be associated with GW170817/GRB 170817A. The prompt gamma-ray emission consists of two distinctive components - a hard short pulse delayed by $\sim2$ seconds with respect to the LIGO signal and softer thermal pulse with $T\sim 10 $ keV lasting for another $\sim2$ seconds. The appearance of a thermal component at the end of the burst is unusual for short GRBs. Both the hard and the soft components do not satisfy the Amati relation, making GRB 170817A distinctively different from other short GRBs. Based on gamma-ray and optical observations, we develop a model for the prompt high-energy emission associated with GRB 170817A. The merger of two neutron stars creates an accretion torus of $\sim10^{-2} M_\odot$, which supplies the black hole with magnetic flux and confines the Blandford-Znajek-powered jet. We associate the hard prompt spike with the quasispherical breakout of the jet from the disk wind. As the jet plows through the wind with subrelativistic velocity, it creates a radiation-dominated shock that heats the wind material to tens of kiloelectron volts, producing the soft thermal component.
Journal ArticleDOI
A tale of two GRB-SNe at a common redshift of z = 0.54
Zach Cano,D. Bersier,C. Guidorzi,C. Guidorzi,Raffaella Margutti,K. M. Svensson,Shiho Kobayashi,A. Melandri,A. Melandri,Klaas Wiersema,A. Pozanenko,A. J. van der Horst,Guy G. Pooley,Alberto Fernández-Soto,A. J. Castro-Tirado,A. de Ugarte Postigo,Myungshin Im,Atish Kamble,D. K. Sahu,J. Alonso-Lorite,G. C. Anupama,J. L. Bibby,J. L. Bibby,Martin Burgdorf,Martin Burgdorf,N. Clay,P. A. Curran,T. A. Fatkhullin,A. S. Fruchter,Peter M. Garnavich,Andreja Gomboc,Javier Gorosabel,John F. Graham,U. K. Gurugubelli,Josh Haislip,Kuiyun Huang,Avon Huxor,Mansur Ibrahimov,Yiseul Jeon,Y.-B. Jeon,K. M. Ivarsen,Daniel Kasen,E. Klunko,Chryssa Kouveliotou,Aaron P. LaCluyze,Andrew J. Levan,V. Loznikov,Paolo A. Mazzali,A. S. Moskvitin,C. J. Mottram,Carole Mundell,Peter Nugent,Melissa C. Nysewander,P. T. O'Brien,W. K. Park,V. Peris,Elena Pian,Daniel E. Reichart,James E. Rhoads,Evert Rol,Vasilij Rumyantsev,Victoria Scowcroft,D. Shakhovskoy,Emma E. Small,Rory Smith,V. V. Sokolov,R. L. C. Starling,Iain A. Steele,Richard G. Strom,Richard G. Strom,Richard G. Strom,Nial R. Tanvir,Yiannis Tsapras,Yiannis Tsapras,Yuji Urata,Ovidiu Vaduvescu,A. Volnova,A. Volvach,Ralph A. M. J. Wijers,S. E. Woosley,D. R. Young +80 more
TL;DR: In this paper, ground-based and Hubble Space Telescope optical observations of the optical transients (OTs) of long-duration Gamma Ray Bursts (GRBs) 060729 and 090618, both at a redshift of z = 0.54, were presented.
Journal ArticleDOI
SN 2008in—Bridging the Gap between Normal and Faint Supernovae of Type IIP
Rupak Roy,Brijesh Kumar,Stefano Benetti,Andrea Pastorello,Fang Yuan,Fang Yuan,Peter J. Brown,Stefan Immler,Stefan Immler,T. A. Fatkhullin,A. S. Moskvitin,Justyn R. Maund,Carl W. Akerlof,J. Craig Wheeler,V. V. Sokolov,R. M. Quimby,Filomena Bufano,Brajesh Kumar,Brajesh Kumar,Kuntal Misra,Kuntal Misra,Shashi B. Pandey,Shashi B. Pandey,Nancy Elias-Rosa,Peter W. A. Roming,Ram Sagar +25 more
TL;DR: In this paper, optical photometric and low-resolution spectroscopic observations of the Type II plateau supernova (SN) 2008in, which occurred in the outskirts of the nearly face-on spiral galaxy M61, were used to characterize this event.
Journal ArticleDOI
The bright Type IIP SN 2009bw, showing signs of interaction
Cosimo Inserra,Cosimo Inserra,Cosimo Inserra,Massimo Turatto,Andrea Pastorello,Andrea Pastorello,Maria Letizia Pumo,Maria Letizia Pumo,E. Baron,Stefano Benetti,Enrico Cappellaro,S. Taubenberger,Filomena Bufano,Nancy Elias-Rosa,Luca Zampieri,Avet Harutyunyan,A. S. Moskvitin,M. Nissinen,Vallery Stanishev,D. Y. Tsvetkov,V. P. Hentunen,V. N. Komarova,N. N. Pavlyuk,V. V. Sokolov,T. N. Sokolova +24 more
TL;DR: In this article, the authors present photometry and spectroscopy of the type IIP supernova 2009bw in UGC 2890 from few days after the outburst to 241 days, and estimate a total ejected mass of 8 12M, a kinetic energy of 03 foe and an initial radius of 3:6 7 10 13 cm.