Zobrazeno 21 - 30
of 196
pro vyhledávání: '"Ho, Anna Y. Q."'
Autor:
Ho, Anna Y. Q., Perley, Daniel A., Yao, Yuhan, Svinkin, Dmitry, Postigo, A. de Ugarte, Perley, R. A., Kann, D. Alexander, Burns, Eric, Andreoni, Igor, Bellm, Eric C., Bissaldi, Elisabetta, Bloom, Joshua S., Dekany, Richard, Drake, Andrew J., Fernández, José Feliciano Agüí, Frederiks, Dmitry, Graham, Matthew J., Hristov, Boyan A., Kasliwal, Mansi M., Kulkarni, S. R., Kumar, Harsh, Laher, Russ R., Lysenko, Alexandra L., Mailyan, Bagrat, Malacaria, Christian, Miller, A. A., Poolakkil, S., Riddle, Reed, Ridnaia, Anna, Rusholme, Ben, Savchenko, Volodymyr, Sollerman, Jesper, Thöne, Christina, Tsvetkova, Anastasia, Ulanov, Mikhail, von Kienlin, Andreas
Dirty fireballs are a hypothesized class of relativistic massive-star explosions with an initial Lorentz factor $\Gamma_\mathrm{init}$ below the $\Gamma_\mathrm{init}\sim100$ required to produce a long-duration gamma-ray burst (LGRB), but which could
Externí odkaz:
http://arxiv.org/abs/2201.12366
Autor:
Yao, Yuhan, Ho, Anna Y. Q., Medvedev, Pavel, J., Nayana A., Perley, Daniel A., Kulkarni, S. R., Chandra, Poonam, Sazonov, Sergey, Gilfanov, Marat, Khorunzhev, Georgii, Khatami, David K., Sunyaev, Rashid
We present AT2020mrf (SRGe J154754.2$+$443907), an extra-galactic ($z=0.1353$) fast blue optical transient (FBOT) with a rise time of $t_{g,\rm rise}=3.7$ days and a peak luminosity of $M_{g,\rm peak}=-20.0$. Its optical spectrum around peak shows a
Externí odkaz:
http://arxiv.org/abs/2112.00751
Autor:
Kulkarni, S. R., Harrison, Fiona A., Grefenstette, Brian W., Earnshaw, Hannah P., Andreoni, Igor, Berg, Danielle A., Bloom, Joshua S., Cenko, S. Bradley, Chornock, Ryan, Christiansen, Jessie L., Coughlin, Michael W., Criswell, Alexander Wuollet, Darvish, Behnam, Das, Kaustav K., De, Kishalay, Dessart, Luc, Dixon, Don, Dorsman, Bas, El-Badry, Kareem, Evans, Christopher, Ford, K. E. Saavik, Fremling, Christoffer, Gansicke, Boris T., Gezari, Suvi, Goetberg, Y., Green, Gregory M., Graham, Matthew J., Heida, Marianne, Ho, Anna Y. Q., Jaodand, Amruta D., Johns-Krull, Christopher M., Kasliwal, Mansi M., Lazzarini, Margaret, Lu, Wenbin, Margutti, Raffaella, Martin, D. Christopher, Masters, Daniel Charles, McKernan, Barry, Naze, Yael, Nissanke, Samaya M., Parazin, B., Perley, Daniel A., Phinney, E. Sterl, Piro, Anthony L., Raaijmakers, G., Rauw, Gregor, Rodriguez, Antonio C., Sana, Hugues, Senchyna, Peter, Singer, Leo P., Spake, Jessica J., Stassun, Keivan G., Stern, Daniel, Teplitz, Harry I., Weisz, Daniel R., Yao, Yuhan
UVEX is a proposed medium class Explorer mission designed to provide crucial missing capabilities that will address objectives central to a broad range of modern astrophysics. The UVEX design has two co-aligned wide-field imagers operating in the FUV
Externí odkaz:
http://arxiv.org/abs/2111.15608
Autor:
Perley, Daniel A., Sollerman, Jesper, Schulze, Steve, Yao, Yuhan, Fremling, Christoffer, Gal-Yam, Avishay, Ho, Anna Y. Q., Yang, Yi, Kool, Erik C., Irani, Ido, Yan, Lin, Andreoni, Igor, Baade, Dietrich, Bellm, Eric C., Brink, Thomas G., Chen, Ting-Wan, Cikota, Aleksandar, Coughlin, Michael W., Dekany, Richard, Duev, Dmitry A., Filippenko, Alexei V., Hoeflich, Peter, Kasliwal, Mansi M., Kulkarni, S. R., Lunnan, Ragnhild, Masci, Frank J., Maund, Justyn R., Medford, Michael S., Riddle, Reed, Rosnet, Philippe, Shupe, David L., Strotjohann, Nora Linn, Tzanidakis, Anastasios, Zheng, WeiKang
We present observations of SN 2021csp, the second example of a newly-identified type of supernova (Type Icn) hallmarked by strong, narrow, P Cygni carbon features at early times. The SN appears as a fast and luminous blue transient at early times, re
Externí odkaz:
http://arxiv.org/abs/2111.12110
Autor:
Ho, Anna Y. Q., Margalit, Ben, Bremer, Michael, Perley, Daniel A., Yao, Yuhan, Dobie, Dougal, Kaplan, David L., O'Brien, Andrew, Petitpas, Glen, Zic, Andrew
Observations of the extragalactic ($z=0.0141$) transient AT2018cow established a new class of energetic explosions shocking a dense medium, which produce luminous emission at millimeter and sub-millimeter wavelengths. Here we present detailed millime
Externí odkaz:
http://arxiv.org/abs/2110.05490
Progenitors of core-collapse supernovae (SNe) can shed significant mass to circumstellar material (CSM) in the months--years preceding core-collapse. The ensuing SN explosion launches ejecta that may subsequently collide with this CSM, producing shoc
Externí odkaz:
http://arxiv.org/abs/2109.09746
Autor:
Dong, Dillon Z., Hallinan, Gregg, Nakar, Ehud, Ho, Anna Y. Q., Hughes, Andrew K., Hotokezaka, Kenta, Myers, Steve T., De, Kishalay, Mooley, Kunal, Ravi, Vikram, Horesh, Assaf, Kasliwal, Mansi M., Kulkarni, Shri R.
Publikováno v:
Science 373, 1125-1129 (2021)
A core-collapse supernova occurs when exothermic fusion ceases in the core of a massive star, typically due to exhaustion of nuclear fuel. Theory predicts that fusion could be interrupted earlier, by merging of the star with a compact binary companio
Externí odkaz:
http://arxiv.org/abs/2109.01752
Autor:
Szkody, Paula, Loohuis, Clair Olde, Koplitz, Brad, van Roestel, Jan, Dicenzo, Brooke, Ho, Anna Y. Q., Hillenbrand, Lynne A., Bellm, Eric C., DeKany, Richard, Drake, Andrew J., Duev, Dmitry A., Graham, Matthew J., Kasliwal, Mansi M., Mahabal, Ashish A., Masci, Frank J., Neill, James D., Riddle, Reed, Rusholme, Benjamin, Sollerman, Jesper, Walters, Richard
Using a filter in the GROWTH Marshal based on color and the amplitude and the timescale of variability, we have identified 372 objects as known or candidate cataclysmic variables (CVs) during the second year of operation of the Zwicky Transient Facil
Externí odkaz:
http://arxiv.org/abs/2107.07051
Autor:
Ho, Anna Y. Q., Perley, Daniel A., Gal-Yam, Avishay, Lunnan, Ragnhild, Sollerman, Jesper, Schulze, Steve, Das, Kaustav K., Dobie, Dougal, Yao, Yuhan, Fremling, Christoffer, Adams, Scott, Anand, Shreya, Andreoni, Igor, Bellm, Eric C., Bruch, Rachel J., Burdge, Kevin B., Castro-Tirado, Alberto J., Dahiwale, Aishwarya, De, Kishalay, Dekany, Richard, Drake, Andrew J., Duev, Dmitry A., Graham, Matthew J., Helou, George, Kaplan, David L., Karambelkar, Viraj, Kasliwal, Mansi M., Kool, Erik C., Kulkarni, S. R., Mahabal, Ashish A., Medford, Michael S., Miller, A. A., Nordin, Jakob, Ofek, Eran, Petitpas, Glen, Riddle, Reed, Sharma, Yashvi, Smith, Roger, Stewart, Adam J., Taggart, Kirsty, Tartaglia, Leonardo, Tzanidakis, Anastasios, Winters, Jan Martin
We present a search for extragalactic fast blue optical transients (FBOTs) during Phase I of the Zwicky Transient Facility (ZTF). We identify 38 candidates with durations above half-maximum light 1 d < t1/2 < 12 d, of which 28 have blue (g-r<-0.2 mag
Externí odkaz:
http://arxiv.org/abs/2105.08811
Autor:
Ahumada, Tomas, Singer, Leo P., Anand, Shreya, Coughlin, Michael W., Kasliwal, Mansi M., Ryan, Geoffrey, Andreoni, Igor, Cenko, S. Bradley, Fremling, Christoffer, Kumar, Harsh, Pang, Peter T. H., Burns, Eric, Cunningham, Virginia, Dichiara, Simone, Dietrich, Tim, Svinkin, Dmitry S., Almualla, Mouza, Castro-Tirado, Alberto J., De, Kishalay, Dunwoody, Rachel, Gatkine, Pradip, Hammerstein, Erica, Iyyani, Shabnam, Mangan, Joseph, Perley, Dan, Purkayastha, Sonalika, Bellm, Eric, Bhalerao, Varun, Bolin, Bryce, Bulla, Mattia, Cannella, Christopher, Chandra, Poonam, Duev, Dmitry A., Frederiks, Dmitry, Gal-Yam, Avishay, Graham, Matthew, Ho, Anna Y. Q., Hurley, Kevin, Karambelkar, Viraj, Kool, Erik C., Kulkarni, S. R., Mahabal, Ashish, Masci, Frank, McBreen, Sheila, Pandey, Shashi B., Reusch, Simeon, Ridnaia, Anna, Rosnet, Philippe, Rusholme, Benjamin, Carracedo, Ana Sagues, Smith, Roger, Soumagnac, Maayane, Stein, Robert, Troja, Eleonora, Tsvetkova, Anastasia, Walters, Richard, Valeev, Azamat F.
Gamma-ray bursts (GRBs) are among the brightest and most energetic events in the universe. The duration and hardness distribution of GRBs has two clusters, now understood to reflect (at least) two different progenitors. Short-hard GRBs (SGRBs; T90 <2
Externí odkaz:
http://arxiv.org/abs/2105.05067