Zobrazeno 1 - 10
of 794
pro vyhledávání: '"Bizyaev, Dmitry"'
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
Based on the integral field unit (IFU) data from Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey, we develop a new method to select galaxies with biconical ionized structures, building a sample of 142 edge-on biconical ionized gala
Externí odkaz:
http://arxiv.org/abs/2405.03117
Autor:
Drory, Niv, Blanc, Guillermo A., Kreckel, Kathryn, Sanchez, Sebastian F., Mejia-Narvaez, Alfredo, Johnston, Evelyn J., Jones, Amy M., Pellegrini, Eric W., Konidaris, Nicholas P., Herbst, Tom, Sanchez-Gallego, Jose, Kollmeier, Juna A., de Almeida, Florence, Barrera-Ballesteros, Jorge K., Bizyaev, Dmitry, Brownstein, Joel R., Saguer, Mar Canal i, Cherinka, Brian, Cioni, Maria-Rosa L., Congiu, Enrico, Cosens, Maren, Dias, Bruno, Donor, John, Egorov, Oleg, Egorova, Evgeniia, Froning, Cynthia S., Garcia, Pablo, Glover, Simon C. O., Greve, Hannah, Haeberle, Maximilian, Hoy, Kevin, Ibarra, Hector, Li, Jing, Klessen, Ralf S., Krishnarao, Dhanesh, Kumari, Nimisha, Long, Knox S., Mendez-Delgado, Jose Eduardo, Popa, Silvia Anastasia, Ramirez, Solange, Rix, Hans-Walter, Sanchez, Aurora Mata, Sankrit, Ravi, Sattler, Natascha, Sayres, Conor, Singh, Amrita, Stringfellow, Guy, Wachter, Stefanie, Watkins, Elizabeth Jayne, Wong, Tony, Wofford, Aida
We present the Sloan Digital Sky Survey V (SDSS-V) Local Volume Mapper (LVM). The LVM is an integral-field spectroscopic survey of the Milky Way, Magellanic Clouds, and of a sample of local volume galaxies, connecting resolved pc-scale individual sou
Externí odkaz:
http://arxiv.org/abs/2405.01637
Autor:
Mo, Hao, Chen, Yan-Mei, Zhang, Zhi-Yun, Moiseev, Alexei, Bizyaev, Dmitry, Shi, Yong, Gu, Qiu-Sheng, Bao, Min, Cao, Xiao, Li, Song-Lin
We identify a fading AGN SDSS J220141.64+115124.3 from the internal Product Launch-11 (MPL-11) in Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey. The central region with a projected radius of $\sim$2.4 kpc is characterized as LINE
Externí odkaz:
http://arxiv.org/abs/2403.09174
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:
Bizyaev, Dmitry
We propose to employ emission line luminosities obtained via optical spectroscopy to estimate the content of neutral hydrogen (HI) in galaxies. We use the optical spectroscopy data from the Mapping of Nearby Galaxies at APO (MaNGA) survey released in
Externí odkaz:
http://arxiv.org/abs/2312.03662
Autor:
Imig, Julie, Price, Cathryn, Holtzman, Jon A., Stone-Martinez, Alexander, Majewski, Steven R., Weinberg, David H., Johnson, Jennifer A., Prieto, Carlos Allende, Beaton, Rachael L., Beers, Timothy C., Bizyaev, Dmitry, Blanton, Michael R., Brownstein, Joel R., Cunha, Katia, Fernández-Trincado, José G., Feuillet, Diane K., Hasselquist, Sten, Hayes, Christian R., Jönsson, Henrik, Lane, Richard R., Lian, Jianhui, Mészáros, Szabolcs, Nidever, David L., Robin, Annie C., Shetrone, Matthew, Smith, Verne, Wilson, John C.
Publikováno v:
ApJ 954 124 (2023)
We present new maps of the Milky Way disk showing the distribution of metallicity ([Fe/H]), $\alpha$-element abundances ([Mg/Fe]), and stellar age, using a sample of 66,496 red giant stars from the final data release (DR17) of the Apache Point Observ
Externí odkaz:
http://arxiv.org/abs/2307.13887
Autor:
Postnikova, Vera K., Bizyaev, Dmitry
Publikováno v:
Astronomy Letters 2023, 49, 151
We explore sources of ionization of diffuse gas at different altitudes in galaxies in dependence of their stellar mass, \Ha\ luminosity, and specific star formation rate. We use the MaNGA data from SDSS-IV data release DR16 together with photoionizat
Externí odkaz:
http://arxiv.org/abs/2307.01544
Autor:
Wanderley, Fábio, Cunha, Katia, Souto, Diogo, Smith, Verne V., Cao, Lyra, Pinsonneault, Marc, Prieto, C. Allende, Covey, Kevin, Masseron, Thomas, Pascucci, Ilaria, Stassun, Keivan G., Terrien, Ryan, Bergsten, Galen J., Bizyaev, Dmitry, Fernández-Trincado, José G., Jönsson, Henrik, Hasselquist, Sten, Holtzman, Jon A., Lane, Richard R., Mahadevan, Suvrath, Majewski, Steven R., Minniti, Dante, Pan, Kaike, Serna, Javier, Sobeck, Jennifer, Stringfellow, Guy S.
We present a spectroscopic analysis of a sample of 48 M dwarf stars ($0.2 M_{\odot}< M < 0.6 M_{\odot}$) from the Hyades open cluster using high-resolution H-band spectra from the SDSS/APOGEE survey. Our methodology adopts spectrum synthesis with LTE
Externí odkaz:
http://arxiv.org/abs/2305.07065