Zobrazeno 1 - 10
of 388
pro vyhledávání: '"Silverman, Jeffrey M"'
Autor:
Stahl, Benjamin E., Zheng, WeiKang, de Jaeger, Thomas, Brink, Thomas G., Filippenko, Alexei V., Silverman, Jeffrey M., Cenko, S. Bradley, Clubb, Kelsey I., Graham, Melissa L., Halevi, Goni, Kelly, Patrick L., Kleiser, Io, Shivvers, Isaac, Yuk, Heechan, Cobb, Bethany E., Fox, Ori D., Kandrashoff, Michael T., Kong, Jason J., Mauerhan, Jon C., Wang, Xianggao, Wang, Xiaofeng
We present 637 low-redshift optical spectra collected by the Berkeley Supernova Ia Program (BSNIP) between 2009 and 2018, almost entirely with the Kast double spectrograph on the Shane 3~m telescope at Lick Observatory. We describe our automated spec
Externí odkaz:
http://arxiv.org/abs/2001.03235
Autor:
Smith, Nathan, Andrews, Jennifer E., Moe, Maxwell, Milne, Peter, Bilinski, Christopher, Kilpatrick, Charles D., Fong, Wen-Fai, Badenes, Carles, Filippenko, Alexei V., Kasliwal, Mansi, Silverman, Jeffrey M.
MCA-1B (also called UIT003) is a luminous hot star in the western outskirts of M33, classified over 20yr ago with a spectral type of Ofpe/WN9 and identified then as a candidate luminous blue variable (LBV). Palomar Transient Factory data reveal that
Externí odkaz:
http://arxiv.org/abs/2001.02725
Autor:
Pooley, David, Wheeler, J. Craig, Vinkó, Jozsef, Dwarkadas, Vikram V., Szalai, Tamas, Silverman, Jeffrey M., Griesel, Madelaine, McCullough, Molly, Marion, G. H., MacQueen, Phillip
Publikováno v:
2019, ApJ, 833, 120
The interaction between the expanding supernova (SN) ejecta with the circumstellar material (CSM) that was expelled from the progenitor prior to explosion is a long-sought phenomenon, yet observational evidence is scarce. Here we confirm a new exampl
Externí odkaz:
http://arxiv.org/abs/1910.06395
Autor:
Shivvers, Isaac, Filippenko, Alexei V., Silverman, Jeffrey M., Zheng, WeiKang, Foley, Ryan J., Chornock, Ryan, Barth, Aaron J., Cenko, S. Bradley, Clubb, Kelsey I., Fox, Ori D., Ganeshalingam, Mohan, Graham, Melissa L., Kelly, Patrick L., Kleiser, Io K. W., Leonard, Douglas C., Li, Weidong, Matheson, Thomas, Mauerhan, Jon C., Modjaz, Maryam, Serduke, Franklin J. D., Shields, Joseph C., Steele, Thea N., Swift, Brandon J., Wong, Diane S., Yuk, Heechan
We present the complete sample of stripped-envelope supernova (SN) spectra observed by the Lick Observatory Supernova Search (LOSS) collaboration over the last three decades: 888 spectra of 302 SNe, 652 published here for the first time, with 384 spe
Externí odkaz:
http://arxiv.org/abs/1810.03650
Autor:
Williams, Peter R., Pancoast, Anna, Treu, Tommaso, Brewer, Brendon J., Barth, Aaron J., Bennert, Vardha N., Buehler, Tabitha, Canalizo, Gabriela, Cenko, S. Bradley, Clubb, Kelsey I., Cooper, Michael C., Filippenko, Alexei V., Gates, Elinor, Hoenig, Sebastian F., Joner, Michael D., Kandrashoff, Michael T., Laney, Clifton David, Lazarova, Mariana S., Li, Weidong, Malkan, Matthew A., Rex, Jacob, Silverman, Jeffrey M., Tollerud, Erik, Walsh, Jonelle L., Woo, Jong-Hak
We present models of the H$\beta$-emitting broad-line region (BLR) in seven Seyfert 1 galaxies from the Lick AGN (Active Galactic Nucleus) Monitoring Project 2011 sample, drawing inferences on the BLR structure and dynamics as well as the mass of the
Externí odkaz:
http://arxiv.org/abs/1809.05113
Autor:
Quimby, Robert M., De Cia, Annalisa, Gal-Yam, Avishay, Leloudas, Giorgos, Lunnan, Ragnhild, Perley, Daniel A., Vreeswijk, Paul M., Yan, Lin, Bloom, Joshua S., Cenko, S. Bradley, Cooke, Jeff, Ellis, Richard, Filippenko, Alexei V., Kasliwal, Mansi M., Kleiser, Io K. W., Kulkarni, Shrinivas R., Matheson, Thomas, Nugent, Peter E., Pan, Yen-Chen, Silverman, Jeffrey M., Sternberg, Assaf, Sullivan, Mark, Yaron, Ofer
Most Type I superluminous supernovae (SLSNe-I) reported to date have been identified by their high peak luminosities and spectra lacking obvious signs of hydrogen. We demonstrate that these events can be distinguished from normal-luminosity SNe (incl
Externí odkaz:
http://arxiv.org/abs/1802.07820
Autor:
Bilinski, Christopher, Smith, Nathan, Williams, G. Grant, Smith, Paul, Zheng, WeiKang, Graham, Melissa L., Mauerhan, Jon C., Andrews, Jennifer E., Filippenko, Alexei V., Akerlof, Carl, Chatzopoulos, E., Hoffman, Jennifer L., Huk, Leah, Leonard, Douglas C., Marion, G. H., Milne, Peter, Quimby, Robert M., Silverman, Jeffrey M., Vinkó, Jozsef, Wheeler, J. Craig, Yuan, Fang
We present photometry, spectra, and spectropolarimetry of supernova (SN) 2012ab, mostly obtained over the course of $\sim 300$ days after discovery. SN 2012ab was a Type IIn (SN IIn) event discovered near the nucleus of spiral galaxy 2MASXJ12224762+0
Externí odkaz:
http://arxiv.org/abs/1712.03370
Autor:
Bochenek, C. D., Dwarkadas, Vikram. V., Silverman, Jeffrey M., Fox, Ori D., Chevalier, Roger A., Smith, Nathan, Filippenko, Alexei V.
X-ray emission is one of the signposts of circumstellar interaction in supernovae (SNe), but until now, it has been observed only in core-collapse SNe. The level of thermal X-ray emission is a direct measure of the density of the circumstellar medium
Externí odkaz:
http://arxiv.org/abs/1708.07181
Autor:
Barna, Barnabas, Szalai, Tamas, Kromer, Markus, Kerzendorf, Wolfgang E., Vinko, Jozsef, Silverman, Jeffrey M., Marion, G. H., Wheeler, J. Craig
We present a detailed spectral analysis of Type Iax SN 2011ay. Our spectra cover epochs between -3 and +19 days with respect to the maximum light in B-band. This time range allows us to employ a so-called abundance tomography technique. The synthetic
Externí odkaz:
http://arxiv.org/abs/1707.07848
Autor:
Graham, Melissa L., Harris, Chelsea E., Fox, Ori D., Nugent, Peter E., Kasen, Daniel, Silverman, Jeffrey M., Filippenko, Alexei V.
The optical transient PTF11kx exhibited both the characteristic spectral features of Type Ia supernovae (SNe Ia) and the signature of ejecta interacting with circumstellar material (CSM) containing hydrogen, indicating the presence of a nondegenerate
Externí odkaz:
http://arxiv.org/abs/1706.02266