Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Grisha Zeltyn"'
Autor:
Grisha Zeltyn, Benny Trakhtenbrot, Michael Eracleous, Qian Yang, Paul Green, Scott F. Anderson, Stephanie LaMassa, Jessie Runnoe, Roberto J. Assef, Franz E. Bauer, W. N. Brandt, Megan C. Davis, Sara E. Frederick, Logan B. Fries, Matthew J. Graham, Norman A. Grogin, Muryel Guolo, Lorena Hernández-García, Anton M. Koekemoer, Mirko Krumpe, Xin Liu, Mary Loli Martínez-Aldama, Claudio Ricci, Donald P. Schneider, Yue Shen, Marzena Śniegowska, Matthew J. Temple, Jonathan R. Trump, Yongquan Xue, Joel R. Brownstein, Tom Dwelly, Sean Morrison, Dmitry Bizyaev, Kaike Pan, Juna A. Kollmeier
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 85 (2024)
“Changing-look” active galactic nuclei (CL-AGNs) challenge our basic ideas about the physics of accretion flows and circumnuclear gas around supermassive black holes. Using first-year Sloan Digital Sky Survey V (SDSS-V) repeated spectroscopy of n
Externí odkaz:
https://doaj.org/article/339acb449dd0467789da0c0548528c8a
Autor:
Logan B. Fries, Jonathan R. Trump, Megan C. Davis, C. J. Grier, Yue Shen, Scott F. Anderson, Tom Dwelly, Michael Eracleous, Y. Homayouni, Keith Horne, Mirko Krumpe, Sean Morrison, Jessie C. Runnoe, Benny Trakhtenbrot, Roberto J. Assef, W. N. Brandt, Joel Brownstein, Collin Dabbieri, Alexander Fix, Gloria Fonseca Alvarez, Sara Frederick, P. B. Hall, Anton M. Koekemoer, Jennifer I-Hsiu Li, Xin Liu, Mary Loli Martínez-Aldama, Claudio Ricci, Donald P. Schneider, Hugh W. Sharp, Matthew J. Temple, Qian Yang, Grisha Zeltyn, Dmitry Bizyaev
Publikováno v:
The Astrophysical Journal, Vol 948, Iss 1, p 5 (2023)
We present a high-cadence multiepoch analysis of dramatic variability of three broad emission lines (Mg ii , H β , and H α ) in the spectra of the luminous quasar ( λ L _λ (5100 Å) = 4.7 × 10 ^44 erg s ^−1 ) SDSS J141041.25+531849.0 at z = 0.
Externí odkaz:
https://doaj.org/article/276e882bf70d4f4cab2f2802e95336fb
Autor:
Benny Trakhtenbrot, Grisha Zeltyn
We examine the contribution of high-redshift (z>6) active galactic nuclei (AGNs) to cosmic hydrogen reionization, by tracing the growth and ionizing output of the first generation of supermassive black holes (SMBHs). Our calculations are anchored to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77ae34d59cba101ec4d8a64bfe98b840
Publikováno v:
Journal of Physics: Conference Series. 2122:012010
Visualization in three dimensions is invaluable for understanding the nature of condensed and fluid systems, but it is not always easy. In nature it is hard to view sample interiors, but on computers it is possible. We describe and contrast two oppos
Autor:
Grisha Zeltyn, Benny Trakhtenbrot, Michael Eracleous, Jessie Runnoe, Jonathan R. Trump, Jonathan Stern, Yue Shen, Lorena Hernández-García, Franz E. Bauer, Qian Yang, Tom Dwelly, Claudio Ricci, Paul Green, Scott F. Anderson, Roberto J. Assef, Muryel Guolo, Chelsea MacLeod, Megan C. Davis, Logan Fries, Suvi Gezari, Norman A. Grogin, David Homan, Anton M. Koekemoer, Mirko Krumpe, Stephanie LaMassa, Xin Liu, Andrea Merloni, Mary Loli Martínez-Aldama, Donald P. Schneider, Matthew J. Temple, Joel R. Brownstein, Hector Ibarra-Medel, Jamison Burke, Craig Pellegrino, Juna A. Kollmeier
Publikováno v:
The Astrophysical Journal Letters. 939(1):L16
We report the discovery of a new ``changing-look'' active galactic nucleus (CLAGN) event, in the quasar SDSS J162829.17+432948.5 at z=0.2603, identified through repeat spectroscopy from the fifth Sloan Digital Sky Survey (SDSS-V). Optical photometry
Autor:
Logan B. Fries, Jonathan R. Trump, Megan C. Davis, C. J. Grier, Yue Shen, Scott F. Anderson, Tom Dwelly, Michael Eracleous, Y. Homayouni, Keith Horne, Mirko Krumpe, Sean Morrison, Jessie C. Runnoe, Benny Trakhtenbrot, Roberto J. Assef, W. N. Brandt, Joel Brownstein, Collin Dabbieri, Alexander Fix, Gloria Fonseca Alvarez, Sara Frederick, P. B. Hall, Anton M. Koekemoer, Jennifer I-Hsiu Li, Xin Liu, Mary Loli Martínez-Aldama, Claudio Ricci, Donald P. Schneider, Hugh W. Sharp, Matthew J. Temple, Qian Yang, Grisha Zeltyn, Dmitry Bizyaev
Publikováno v:
The Astrophysical Journal. 948(1):5
Funding: L.B.F., J.R.T., and M.C.D. acknowledge support from NSF grant CAREER-1945546, and with C.J.G. acknowledge support from NSF grant AST-2108668. J.R.T., C.J.G., and Y.S. also acknowledge support from NSF grant AST-2009539. M.K. acknowledges sup