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pro vyhledávání: '"Simm, Torben"'
Autor:
Liu, Teng, Merloni, Andrea, Simm, Torben, Green, Paul J., Brandt, William N., Schneider, Donald P., Dwelly, Tom, Salvato, Mara, Buchner, Johannes, Shen, Yue, Nandra, Kirpal, Georgakakis, Antonis, Ho, Luis C.
The XMM-RM project was designed to provide X-ray coverage of the Sloan Digital Sky Survey Reverberation Mapping (SDSS-RM) field. 41 XMM-Newton exposures, placed surrounding the Chandra AEGIS field, were taken, covering an area of 6.13 deg^2 and reach
Externí odkaz:
http://arxiv.org/abs/2009.02193
Autor:
Dexter, Jason, Xin, Shuo, Shen, Yue, Grier, C. J., Liu, Teng, Gezari, Suvi, McGreer, Ian D., Brandt, W. N., Hall, P. B., Horne, Keith, Simm, Torben, Merloni, Andrea, Green, Paul J., Vivek, M., Trump, Jonathan R., Homayouni, Yasaman, Peterson, B. M., Schneider, Donald P., Kinemuchi, K., Pan, Kaike, Bizyaev, Dmitry
We analyze extensive spectroscopic and photometric data of the hypervariable quasar SDSS J131424+530527 (RMID 017) at z=0.456, an optical "changing look" quasar from the Sloan Digital Sky Survey Reverberation Mapping project that increased in optical
Externí odkaz:
http://arxiv.org/abs/1906.10138
Autor:
Shen, Yue, Hall, Patrick B., Horne, Keith, Zhu, Guangtun, McGreer, Ian, Simm, Torben, Trump, Jonathan R., Kinemuchi, Karen, Brandt, W. N., Green, Paul J., Grier, C. J., Guo, Hengxiao, Ho, Luis C., Homayouni, Yasaman, Jiang, Linhua, Li, Jennifer I-Hsiu, Morganson, Eric, Petitjean, Patrick, Richards, Gordon T., Schneider, Donald P., Starkey, D. A., Wang, Shu, Chambers, Ken, Kaiser, Nick, Kudritzki, Rolf-Peter, Magnier, Eugene, Waters, Christopher
We present a detailed characterization of the 849 broad-line quasars from the Sloan Digital Sky Survey Reverberation Mapping (SDSS-RM) project. Our quasar sample covers a redshift range of 0.1
Externí odkaz:
http://arxiv.org/abs/1810.01447
Autor:
Simm, Torben, Buchner, Johannes, Merloni, Andrea, Nandra, Kirpal, Shen, Yue, Erben, Thomas, Coil, Alison L., Willmer, Christopher N. A., Schneider, Donald P.
We report on the discovery of a dramatic X-ray spectral variability event observed in a $z\sim 1$ broad line type-1 QSO. The XMM-Newton spectrum from the year 2000 is characterized by an unobscured power-law spectrum with photon index of $\Gamma\sim
Externí odkaz:
http://arxiv.org/abs/1808.05207
Akademický článek
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Autor:
Liu, Teng, Merloni, Andrea, Simm, Torben, Green, Paul J., Brandt, William N., Schneider, Donald P., Dwelly, Tom, Salvato, Mara, Buchner, Johannes, Shen, Yue, Nandra, Kirpal, Georgakakis, Antonis, Ho, Luis C.
Publikováno v:
Astrophysical Journal Supplement Series; Oct2020, Vol. 250 Issue 2, p1-16, 16p
Autor:
Simm, Torben, Salvato, M., Saglia, R., Ponti, G., Lanzuisi, G., Trakhtenbrot, B., Nandra, K., Bender, R.
One of the elementary properties of quasar activity is continuous variability in the UV/optical bands. The power spectral density (PSD) potentially contains information about the underlying processes connected to variability. We applied a novel metho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::285065a3d68ab57bc591cac0f0c9f815