Zobrazeno 1 - 10
of 994
pro vyhledávání: '"Morrison, Sean"'
Autor:
Fries, Logan B., Trump, Jonathan R., Horne, Keith, Davis, Megan C., Grier, Catherine J., Shen, Yue, Anderson, Scott F., Dwelly, Tom, Homayouni, Y., Morrison, Sean, Runnoe, Jessie C., Trakhtenbrot, Benny, Assef, Roberto J., Bizyaev, Dmitry, Brandt, W. N., Breiding, Peter, Browstein, Joel, Chakraborty, Priyanka, Hall, P. B., Koekemoer, Anton M., Ibarra-Medel, Héctor J., Martínez-Aldama, Mary Loli, Negrete, C. Alenka, Pan, Kaike, Ricci, Claudio, Scheider, Donald P., Sharp, Hugh W., Smith, Theodore B., Stone, Zachary, Temple, Matthew J.
We present a velocity-resolved reverberation mapping analysis of the hypervariable quasar RM160 (SDSS J141041.25+531849.0) at z = 0.359 with 153 spectroscopic epochs of data representing a ten-year baseline (2013-2023). We split the baseline into two
Externí odkaz:
http://arxiv.org/abs/2409.12229
Autor:
Stone, Zachary, Shen, Yue, Anderson, Scott F., Bauer, Franz, Brandt, W. N., Chakraborty, Priyanka, Davis, Megan C., Fries, Logan B., Grier, Catherine J., Hall, P. B., Koekemoer, Anton M., Martínez-Aldama, Mary Loli, Long, Knox, Morrison, Sean, Ricci, Claudio, Schneider, Donald P., Temple, Matthew J., Trump, Jonathan R.
We present dynamical modeling of the broad-line region (BLR) for the highly variable AGN SDSS J141041.25+531849.0 ($z = 0.359$) using photometric and spectroscopic monitoring data from the Sloan Digital Sky Survey Reverberation Mapping project and th
Externí odkaz:
http://arxiv.org/abs/2408.04789
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:
Ji, Alexander P., Curtis, Sanjana, Storm, Nicholas, Chandra, Vedant, Schlaufman, Kevin C., Stassun, Keivan G., Heger, Alexander, Pignatari, Marco, Price-Whelan, Adrian M., Bergemann, Maria, Stringfellow, Guy S., Frohlich, Carla, Reggiani, Henrique, Holmbeck, Erika M., Tayar, Jamie, Shah, Shivani P., Griffith, Emily J., Laporte, Chervin F. P., Casey, Andrew R., Hawkins, Keith, Horta, Danny, Cerny, William, Thibodeaux, Pierre, Usman, Sam A., Amarante, Joao A. S., Beaton, Rachael L., Cargile, Phillip A., Chiappini, Cristina, Conroy, Charlie, Johnson, Jennifer A., Kollmeier, Juna A., Li, Haining, Loebman, Sarah, Meynet, Georges, Bizyaev, Dmitry, Brownstein, Joel R., Gupta, Pramod, Morrison, Sean, Pan, Kaike, Ramirez, Solange V., Rix, Hans-Walter, Sanchez-Gallego, Jose
Stars formed with initial mass over 50 Msun are very rare today, but they are thought to be more common in the early universe. The fates of those early, metal-poor, massive stars are highly uncertain. Most are expected to directly collapse to black h
Externí odkaz:
http://arxiv.org/abs/2401.02484
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:
Arseneau, Stefan, Chandra, Vedant, Hwang, Hsiang-Chih, Zakamska, Nadia L., Pallathadka, Gautham Adamane, Crumpler, Nicole R., Hermes, J. J., El-Badry, Kareem, Rix, Hans-Walter, Stassun, Keivan G., Gaensicke, Boris T., Brownstein, Joel R., Morrison, Sean
Measuring the mass-radius relation of individual white dwarfs is an empirically challenging task that has been performed for only a few dozen stars. We measure the white dwarf mass-radius relation using gravitational redshifts and radii of 137 white
Externí odkaz:
http://arxiv.org/abs/2310.19866
Autor:
Pallathadka, Gautham Adamane, Chandra, Vedant, Zakamska, Nadia L., Hwang, Hsiang-Chih, Zenati, Yossef, Hermes, J. J., El-Badry, Kareem, Gaensicke, Boris T., Morrison, Sean, Crumpler, Nicole R., Arseneau, Stefan
We report the discovery of SDSS~J022932.28+713002.7, a nascent extremely low-mass (ELM) white dwarf (WD) orbiting a massive ($> 1\,M_\odot$ at 2$\sigma$ confidence) companion with a period of 36 hours. We use a combination of spectroscopy, including
Externí odkaz:
http://arxiv.org/abs/2310.16313
We study of the properties of a new class of circumgalactic medium absorbers identified in the Lyman-$\alpha$ forest: "Strong, Blended Lyman-$\alpha$" (or SBLA) absorption systems. We study SBLAs at $2.4
Externí odkaz:
http://arxiv.org/abs/2309.06813
Autor:
Pérez-Ràfols, Ignasi, Abramo, L. Raul, Martínez-Solaeche, Ginés, Pieri, Matthew M., Queiroz, Carolina, Rodrigues, Natália V. N., Bonoli, Silvia, Chaves-Montero, Jonás, Morrison, Sean S., Alcaniz, Jailson, Benitez, Narciso, Carneiro, Saulo, Cenarro, Javier, Cristóbal-Hornillos, David, Dupke, Renato, Ederoclite, Alessandro, Delgado, Rosa M. González, Hernán-Caballero, Antonio, López-Sanjuan, Carlos, Marín-Franch, Antonio, Marra, Valerio, de Oliveira, Claudia Mendes, Moles, Mariano, Sodré Jr., Laerte, Taylor, Keith, Varela, Jesús, Ramió, Héctor Vázquez
Publikováno v:
A&A 678, A144 (2023)
We present a list of quasar candidates including photometric redshift estimates from the miniJPAS Data Release constructed using SQUEzE. This work is based on machine-learning classification of photometric data of quasar candidates using SQUEzE. It h
Externí odkaz:
http://arxiv.org/abs/2309.00461
Autor:
Martínez-Solaeche, G., Queiroz, Carolina, Delgado, R. M. González, Rodrigues, Natália V. N., García-Benito, R., Pérez-Ràfols, Ignasi, Abramo, L. Raul, Díaz-García, Luis, Pieri, Matthew M., Chaves-Montero, Jonás, Hernán-Caballero, A., Rodríguez-Martín, J. E., Bonoli, Silvia, Morrison, Sean S., Márquez, Isabel, Vílchez, J. M., López-Sanjuan, C., Cenarro, A. J., Dupke, R. A., Martín-Franch, A., Varel, J., Ramió, H. Vázquez, Cristóbal-Hornillos, D., Moles, M., Alcaniz, J., Benitez, N., Fernández-Ontiveros, J. A., Ederoclite, A., Marra, V., de Oliveira, C. Mendes, Taylor, K.
Publikováno v:
A&A 673, A103 (2023)
This paper is part of large effort within the J-PAS collaboration that aims to classify point-like sources in miniJPAS, which were observed in 60 optical bands over $\sim$ 1 deg$^2$ in the AEGIS field. We developed two algorithms based on artificial
Externí odkaz:
http://arxiv.org/abs/2303.12684