Zobrazeno 1 - 10
of 2 294
pro vyhledávání: '"Schneider, Donald A"'
Autor:
House, Lindsay R., Gebhardt, Karl, Finkelstein, Keely, Cooper, Erin Mentuch, Davis, Dustin, Farrow, Daniel J., Schneider, Donald P.
We are merging a large participatory science effort with machine learning to enhance the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). Our overall goal is to remove false positives, allowing us to use lower signal-to-noise data and sources
Externí odkaz:
http://arxiv.org/abs/2409.08359
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:
Wu, Qiaoya, Shen, Yue, Guo, Hengxiao, Anderson, Scott F., Brandt, W. N., Grier, Catherine J., Hall, Patrick B., Ho, Luis C., Homayouni, Yasaman, Horne, Keith, Li, Jennifer I-Hsiu, Schneider, Donald P.
Over three decades of reverberation mapping (RM) studies on local broad-line active galactic nuclei (AGNs) have measured reliable black-hole (BH) masses for $> 100$ AGNs. These RM measurements reveal a significant correlation between the Balmer broad
Externí odkaz:
http://arxiv.org/abs/2407.01737
Autor:
Zeimann, Gregory R., Debski, Maya H., Schneider, Donald P., Bowman, William P., Drory, Niv, Hill, Gary J., Lee, Hanshin, MacQueen, Phillip, Shetrone, Matthew
Publikováno v:
2024ApJ...966...14Z
The Hobby-Eberly Telescope (HET) VIRUS Parallel Survey (HETVIPS) is a blind spectroscopic program that sparsely covers approximately two-thirds of the celestial sphere and consists of roughly 252 million fiber spectra. The spectra were taken in paral
Externí odkaz:
http://arxiv.org/abs/2405.00585
Autor:
Ahmed, Harum, Shemmer, Ohad, Matthews, Brandon, Dix, Cooper, Ha, Trung, Richards, Gordon T., Brotherton, Michael S., Myers, Adam D., Brandt, W. N., Gallagher, Sarah C., Green, Richard, Lira, Paulina, McLane, Jacob N., Plotkin, Richard M., Schneider, Donald P.
We present the rest-frame ultraviolet-optical spectral properties of 65 broad absorption line (BAL) quasars from the Gemini Near Infrared Spectrograph-Distant Quasar Survey (GNIRS-DQS). These properties are compared with those of 195 non-BAL quasars
Externí odkaz:
http://arxiv.org/abs/2404.12343
Autor:
Weiss, Laurel H., Davis, Dustin, Gebhardt, Karl, Gazagnes, Simon, Khanlari, Mahan Mirza, Cooper, Erin Mentuch, Chisholm, John, Berg, Danielle, Bowman, William P., Byrohl, Chris, Ciardullo, Robin, Fabricius, Maximilian, Farrow, Daniel, Gronwall, Caryl, Hill, Gary J., House, Lindsay R., Jeong, Donghui, Khoraminezhad, Hasti, Kollatschny, Wolfram, Komatsu, Eiichiro, Niemeyer, Maja Lujan, Saito, Shun, Schneider, Donald P., Zeimann, Gregory R.
The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) is designed to detect and measure the redshifts of more than one million Ly$\alpha$ emitting galaxies (LAEs) between $1.88 < z < 3.52$. In addition to its cosmological measurements, these dat
Externí odkaz:
http://arxiv.org/abs/2401.02490
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:
Davis, Dustin, Gebhardt, Karl, Cooper, Erin Mentuch, Bowman, William P., Castanheira, Barbara Garcia, Chisholm, John, Ciardullo, Robin, Fabricius, Maximilian, Farrow, Daniel J., Finkelstein, Steven L., Gronwall, Caryl, Gawiser, Eric, Hill, Gary J., Hopp, Ulrich, House, Lindsay R., Jeong, Donghui, Kollatschny, Wolfram, Komatsu, Eiichiro, Liu, Chenxu, Niemeyer, Maja Lujan, Saldana-Lopez, Alberto, Saito, Shun, Schneider, Donald P., Snigula, Jan, Tuttle, Sarah, Weiss, Laurel H., Wisotzki, Lutz, Zeimann, Gregory
We describe the ensemble properties of the $1.9 < z < 3.5$ Lyman Alpha Emitters (LAEs) found in the HETDEX survey's first public data release, HETDEX Public Source Catalog 1 (Mentuch Cooper et al. 2023). Stacking the low-resolution ($R \sim$ 800) spe
Externí odkaz:
http://arxiv.org/abs/2307.03096
Autor:
Akiba, Tatsuya, Dexter, Jason, Brandt, William, Ho, Luis C., Homayouni, Yasaman, Schneider, Donald P., Shen, Yue, Trump, Jonathan R.
We explore reprocessing models for a sample of 17 hypervariable quasars, taken from the Sloan Digital Sky Survey Reverberation Mapping (SDSS-RM) project, which all show coordinated optical luminosity hypervariability with amplitudes of factors $\gtrs
Externí odkaz:
http://arxiv.org/abs/2306.13120