Zobrazeno 1 - 10
of 157
pro vyhledávání: '"Graham, Matthew J."'
Autor:
Wang, Yihan, Graham, Matthew J., Ford, K. E. Saavik, McKernan, Barry, Ryu, Taeho, Stern, Daniel
The phenomenon of changing-look (CL) behavior in active galactic nuclei (AGN) is characterized by dramatic changes in luminosity and/or emission line profiles over relatively short periods, ranging from months to years. The origin of CL-AGNs remains
Externí odkaz:
http://arxiv.org/abs/2406.12096
Autor:
Yao, Yuhan, Guolo, Muryel, Tombesi, Francesco, Li, Ruancun, Gezari, Suvi, García, Javier A., Dai, Lixin, Chornock, Ryan, Lu, Wenbin, Kulkarni, S. R., Gendreau, Keith C., Pasham, Dheeraj R., Cenko, S. Bradley, Kara, Erin, Margutti, Raffaella, Ajay, Yukta, Wevers, Thomas, Kwan, Tom M., Andreoni, Igor, Bloom, Joshua S., Drake, Andrew J., Graham, Matthew J., Hammerstein, Erica, Laher, Russ R., LeBaron, Natalie, Mahabal, Ashish A., O'Connor, Brendan, Purdum, Josiah, Ravi, Vikram, Sears, Huei, Sharma, Yashvi, Smith, Roger, Sollerman, Jesper, Somalwar, Jean J., Wold, Avery
We present the tidal disruption event (TDE) AT2022lri, hosted in a nearby ($\approx\!144$ Mpc) quiescent galaxy with a low-mass massive black hole ($10^4\,M_\odot < M_{\rm BH} < 10^6\,M_\odot$). AT2022lri belongs to the TDE-H+He subtype. More than 1
Externí odkaz:
http://arxiv.org/abs/2405.11343
Autor:
Mahabal, Ashish, Sharma, Pranav, Adhikari, Rana, Allen, Mark, Andreon, Stefano, Bhalerao, Varun, Bianco, Federica, Brown, Anthony, Cenko, S. Bradley, Coehlo, Paula, Cooke, Jeffery, Crichton, Daniel, Cui, Chenzhou, de Carvalho, Reinaldo, Doyle, Richard, Eyer, Laurent, Fanaroff, Bernard, Fluke, Christopher, Forster, Francisco, Govender, Kevin, Graham, Matthew J., Hložek, Renée, Irawati, Puji, Kembhavi, Ajit, Kollmeier, Juna, Krone-Martins, Alberto, Kulkarni, Shri, Longo, Giuseppe, McBride, Vanessa, McIver, Jess, Mitra, Sanjit, Prusti, Timo, Ramaprakash, A. N., Reddy, Eswar, Reitze, David H., Rosa, Reinaldo R., Santos, Rafael, Sekiguchi, Kazuhiro, Sheth, Kartik, Somasundaram, Seetha, Souradeep, Tarun, Srianand, R., Subramaniam, Annapurni, Szalay, Alex, Tendulkar, Shriharsh, Trouille, Laura, Wadadekar, Yogesh, Whitelock, Patricia
Policy Brief on "AstroInformatics, Recommendations for Global Collaboration", distilled from panel discussions during S20 Policy Webinar on Astroinformatics for Sustainable Development held on 6-7 July 2023. The deliberations encompassed a wide array
Externí odkaz:
http://arxiv.org/abs/2401.04623
Autor:
Galiullin, Ilkham, Rodriguez, Antonio C., Kulkarni, Shrinivas R., Sunyaev, Rashid, Gilfanov, Marat, Bikmaev, Ilfan, Yungelson, Lev, van Roestel, Jan, Gänsicke, Boris T., Khamitov, Irek, Szkody, Paula, El-Badry, Kareem, Suslikov, Mikhail, Prince, Thomas A., Buntov, Mikhail, Caiazzo, Ilaria, Gorbachev, Mark, Graham, Matthew J., Gumerov, Rustam, Irtuganov, Eldar, Laher, Russ R., Medvedev, Pavel, Riddle, Reed, Rusholme, Ben, Sakhibullin, Nail, Sklyanov, Alexander, Vanderbosch, Zachary P.
Cataclysmic variables (CVs) that have evolved past the period minimum during their lifetimes are predicted to be systems with a brown dwarf donor. While population synthesis models predict that around $\approx 40-70\%$ of the Galactic CVs are post-pe
Externí odkaz:
http://arxiv.org/abs/2401.04178
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:
Jalan, Priyanka, Negi, Vibhore, Surdej, Jean, Boehm, Céline, Delchambre, Ludovic, Brok, Jakob Sebastian den, Dobie, Dougal, Drake, Andrew, Ducourant, Christine, Djorgovski, S. George, Galluccio, Laurent, Graham, Matthew J., Klüter, Jonas, Krone-Martins, Alberto, LeCampion, Jean-François, Mahabal, Ashish A., Mignard, François, Murphy, Tara, Nierenberg, Anna, Scarano, Sergio, Simon, Joseph, Slezak, Eric, Sluse, Dominique, Spíndola-Duarte, Carolina, Stern, Daniel, Teixera, Ramachrisna, Wambsganss, Joachim
Gravitational lensing is proven to be one of the most efficient tools for studying the Universe. The spectral confirmation of such sources requires extensive calibration. This paper discusses the spectral extraction technique for the case of multiple
Externí odkaz:
http://arxiv.org/abs/2312.08217
Autor:
Healy, Brian F., Coughlin, Michael W., Mahabal, Ashish A., Laz, Theophile Jegou du, Drake, Andrew, Graham, Matthew J., Hillenbrand, Lynne A., van Roestel, Jan, Szkody, Paula, Zielske, LeighAnna, Guiga, Mohammed, Hassan, Muhammad Yusuf, Hughes, Jill L., Nir, Guy, Parikh, Saagar, Park, Sungmin, Purohit, Palak, Rebbapragada, Umaa, Reed, Draco, Warshofsky, Daniel, Wold, Avery, Bloom, Joshua S., Masci, Frank J., Riddle, Reed, Smith, Roger
The classification of variable objects provides insight into a wide variety of astrophysics ranging from stellar interiors to galactic nuclei. The Zwicky Transient Facility (ZTF) provides time series observations that record the variability of more t
Externí odkaz:
http://arxiv.org/abs/2312.00143
Autor:
Ho, Anna Y. Q., Perley, Daniel A., Chen, Ping, Schulze, Steve, Dhillon, Vik, Kumar, Harsh, Suresh, Aswin, Swain, Vishwajeet, Bremer, Michael, Smartt, Stephen J., Anderson, Joseph P., Anupama, G. C., Awiphan, Supachai, Barway, Sudhanshu, Bellm, Eric C., Ben-Ami, Sagi, Bhalerao, Varun, de Boer, Thomas, Brink, Thomas G., Burruss, Rick, Chandra, Poonam, Chen, Ting-Wan, Chen, Wen-Ping, Cooke, Jeff, Coughlin, Michael W., Das, Kaustav K., Drake, Andrew J., Filippenko, Alexei V., Freeburn, James, Fremling, Christoffer, Fulton, Michael D., Gal-Yam, Avishay, Galbany, Lluís, Gao, Hua, Graham, Matthew J., Gromadzki, Mariusz, Gutiérrez, Claudia P., Hinds, K-Ryan, Inserra, Cosimo, J., Nayana A., Karambelkar, Viraj, Kasliwal, Mansi M., Kulkarni, Shri, Müller-Bravo, Tomás E., Magnier, Eugene A., Mahabal, Ashish A., Moore, Thomas, Ngeow, Chow-Choong, Nicholl, Matt, Ofek, Eran O., Omand, Conor M. B., Onori, Francesca, Pan, Yen-Chen, Pessi, Priscila J., Petitpas, Glen, Polishook, David, Poshyachinda, Saran, Pursiainen, Miika, Riddle, Reed, Rodriguez, Antonio C., Rusholme, Ben, Segre, Enrico, Sharma, Yashvi, Smith, Ken W., Sollerman, Jesper, Srivastav, Shubham, Strotjohann, Nora Linn, Suhr, Mark, Svinkin, Dmitry, Wang, Yanan, Wiseman, Philip, Wold, Avery, Yang, Sheng, Yang, Yi, Yao, Yuhan, Young, David R., Zheng, WeiKang
In recent years, certain luminous extragalactic optical transients have been observed to last only a few days. Their short observed duration implies a different powering mechanism from the most common luminous extragalactic transients (supernovae) wh
Externí odkaz:
http://arxiv.org/abs/2311.10195
Autor:
Dobie, Dougal, Sluse, Dominique, Deller, Adam, Murphy, Tara, Krone-Martins, Alberto, Stern, Daniel, Wang, Ziteng, Wang, Yuanming, hm, Céline Bøe, Djorgovski, S. G., Galluccio, Laurent, Delchambre, Ludovic, Connor, Thomas, Brok, Jakob Sebastiaan den, Cunha, Pedro H. Do Vale, Ducourant, Christine, Graham, Matthew J., Jalan, Priyanka, Klioner, Sergei A., Klüter, Jonas, Mignard, François, Negi, Vibhore, Petit, Quentin, Scarano Jr, Sergio, Slezak, Eric, Surdej, Jean, Teixeira, Ramachrisna, Walton, Dominic J., Wamsbsganss, Joachim
We present radio observations of 24 confirmed and candidate strongly lensed quasars identified by the Gaia Gravitational Lenses (GraL) working group. We detect radio emission from 8 systems in 5.5 and 9 GHz observations with the Australia Telescope C
Externí odkaz:
http://arxiv.org/abs/2311.07836
Autor:
Blanton, Michael R., Evans, Janet D., Norman, Dara, O'Mullane, William, Price-Whelan, Adrian, Rizzi, Luca, Accomazzi, Alberto, Ansdell, Megan, Bailey, Stephen, Barrett, Paul, Berukoff, Steven, Bolton, Adam, Borrill, Julian, Cruz, Kelle, Dalcanton, Julianne, Desai, Vandana, Dubois-Felsmann, Gregory P., Economou, Frossie, Ferguson, Henry, Field, Bryan, Foreman-Mackey, Dan, Forero-Romero, Jaime, Gaffney, Niall, Gillies, Kim, Graham, Matthew J., Gwyn, Steven, Hennawi, Joseph, Hughes, Anna L. H., Jaffe, Tess, Jagannathan, Preshanth, Jenness, Tim, Jurić, Mario, Kavelaars, JJ, Kee, Kerk, Kern, Jeff, Kremin, Anthony, Labrie, Kathleen, Lacy, Mark, Law, Casey, Martínez-Galarza, Rafael, McCully, Curtis, McEnery, Julie, Miller, Bryan, Moriarty, Christopher, Muench, August, Muna, Demitri, Murillo, Angela, Narayan, Gautham, Neill, James D., Nikutta, Robert, Ojha, Roopesh, Olsen, Knut, O'Meara, John, Rusholme, Ben, Seaman, Robert, Starkman, Nathaniel, Still, Martin, Stoehr, Felix, Swinbank, John D., Teuben, Peter, Toledo, Ignacio, Tollerud, Erik, Turk, Matthew D., Turner, James, Vacca, William, Vieira, Joaquin, Weaver, Benjamin, Weiner, Benjamin, Weiss, Jason, Westfall, Kyle, Willman, Beth, Zhao, Lily
The astronomical community is grappling with the increasing volume and complexity of data produced by modern telescopes, due to difficulties in reducing, accessing, analyzing, and combining archives of data. To address this challenge, we propose the
Externí odkaz:
http://arxiv.org/abs/2311.04272