Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Fries, Logan B."'
Autor:
Wheatley, Robert, Grier, Catherine J., Hall, Patrick B., Brandt, W. N., Lotz, Jonah, Schneider, D. P., Trump, Jonathan R., Shen, Yue, Seaton, Lucas M., Anderson, Scott F., Temple, Matthew J., Assef, Roberto, Fries, Logan B., Homayouni, Y., Kakkad, Darshan, Koekemoer, Anton M., Martınez-Aldama, Mary Loli, Negrete, C. Alenka, Ricci, Claudio, Bizyaev, Dmitry, Brownstein, Joel R., Morrison, Sean, Pan, Kaike
Publikováno v:
ApJ, Volume 968, Issue 2, Article #9 (2024)
We present the results of an investigation of a highly variable CIV broad absorption-line feature in the quasar SBS 1408+544 (z=2.337) that shows a significant shift in velocity over time. This source was observed as a part of the Sloan Digital Sky S
Externí odkaz:
http://arxiv.org/abs/2406.08622
Autor:
Zeltyn, Grisha, Trakhtenbrot, Benny, Eracleous, Michael, Yang, Qian, Green, Paul, Anderson, Scott F., LaMassa, Stephanie, Runnoe, Jessie, Assef, Roberto J., Bauer, Franz E., Brandt, W. N., Davis, Megan C., Frederick, Sara E., Fries, Logan B., Graham, Matthew J., Grogin, Norman A., Guolo, Muryel, Hernández-García, Lorena, Koekemoer, Anton M., Krumpe, Mirko, Liu, Xin, Martínez-Aldama, Mary Loli, Ricci, Claudio, Schneider, Donald P., Shen, Yue, Śniegowska, Marzena, Temple, Matthew J., Trump, Jonathan R., Xue, Yongquan, Brownstein, Joel R., Dwelly, Tom, Morrison, Sean, Bizyaev, Dmitry, Pan, Kaike, Kollmeier, Juna A.
Publikováno v:
ApJ 966 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 nearl
Externí odkaz:
http://arxiv.org/abs/2401.01933
Autor:
Sharp, Hugh W., Homayouni, Y., Trump, Jonathan R., Anderson, Scott F., Assef, Roberto J., Brandt, W. N., Davis, Megan C., Fries, Logan B., Grier, Catherine J., Hall, Patrick B., Horne, Keith, Koekemoer, Anton M., Martínez-Aldama, Mary Loli, Menezes, David M., Pena, Theodore, Ricci, C., Schneider, Donald P., Shen, Yue, Trakhtenbrot, Benny
This work studies the relationship between accretion-disk size and quasar properties, using a sample of 95 quasars from the SDSS-RM project with measured lags between the $g$ and $i$ photometric bands. Our sample includes disk lags that are both long
Externí odkaz:
http://arxiv.org/abs/2309.02499
Autor:
Fries, Logan B., Trump, Jonathan R., Davis, Megan C., Grier, C. J., Shen, Yue, Anderson, Scott F., Dwelly, Tom, Eracleous, Michael, Homayouni, Y., Horne, Keith, Krumpe, Mirko, Morrison, Sean, Runnoe, Jessie C., Trakhtenbrot, Benny, Assef, Roberto J., Brandt, W. N., Brownstein, Joel, Dabbieri, Collin, Fix, Alexander, Alvarez, Gloria Fonseca, Frederick, Sara, Hall, P. B., Koekemoer, Anton M., Li, Jennifer I-Hsiu, Liu, Xin, Martínez-Aldama, Mary Loli, Ricci, Claudio, Schneider, Donald P., Sharp, Hugh W., Temple, Matthew J., Yang, Qian, Zeltyn, Grisha, Bizyaev, Dmitry
We present a high-cadence multi-epoch analysis of dramatic variability of three broad emission lines (MgII, H$\beta$, and H$\alpha$) in the spectra of the luminous quasar ($\lambda L_{\lambda}$(5100\r{A}) = $4.7 \times 10^{44}$ erg s$^{-1}$) SDSS J14
Externí odkaz:
http://arxiv.org/abs/2301.10252
Autor:
Mantha, Kameswara Bharadwaj, McIntosh, Daniel H., Ciaschi, Cody P., Evan, Rubyet, Ferguson, Henry C., Fries, Logan B., Guo, Yicheng, Koekemoer, Anton M., Landry, Luther D., McGrath, Elizabeth J., Simons, Raymond C., Snyder, Gregory F., Thompson, Scott E., Bell, Eric F., Ceverino, Daniel, Hathi, Nimish P., Pacifici, Camilla, Primack, Joel R., Rafelski, Marc, Rodriguez-Gomez, Vicente
The role of major mergers in galaxy evolution remains a key open question. Existing empirical merger identification methods use non-parametric and subjective visual classifications which can pose systematic challenges to constraining merger histories
Externí odkaz:
http://arxiv.org/abs/1903.11099
Autor:
Wheatley, Robert, Grier, Catherine J., Hall, Patrick B., Brandt, W. N., Lotz, Jonah, Schneider, D. P., Trump, Jonathan R., Shen, Yue, Seaton, Lucas M., Anderson, Scott F., Temple, Matthew J., Assef, Roberto, Fries, Logan B., Homayouni, Y., Kakkad, Darshan, Koekemoer, Anton M., Martínez-Aldama, Mary Loli, Negrete, C. Alenka, Ricci, Claudio, Bizyaev, Dmitry
Publikováno v:
Astrophysical Journal; 6/20/2024, Vol. 968 Issue 2, p1-16, 16p
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