Search Results - "Hosseinzadeh, Griffin"

Bumpy Declining Light Curves Are Common in Hydrogen-poor Superluminous Supernovae by Hosseinzadeh, Griffin, Berger, Edo, Metzger, Brian D., Gomez, Sebastian, Nicholl, Matt, Blanchard, Peter

“…Abstract Recent work has revealed that the light curves of hydrogen-poor (Type I) superluminous supernovae (SLSNe), thought to be powered by magnetar central…”
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Luminous Supernovae: Unveiling a Population between Superluminous and Normal Core-collapse Supernovae by Gomez, Sebastian, Berger, Edo, Nicholl, Matt, Blanchard, Peter K., Hosseinzadeh, Griffin

“…Abstract Stripped-envelope core-collapse supernovae can be divided into two broad classes: the common Type Ib/c supernovae (SNe Ib/c), powered by the…”
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Optical emission from a kilonova following a gravitational-wave-detected neutron-star merger by Arcavi, Iair, Hosseinzadeh, Griffin, Howell, D. Andrew, McCully, Curtis, Poznanski, Dovi, Kasen, Daniel, Barnes, Jennifer, Zaltzman, Michael, Vasylyev, Sergiy, Maoz, Dan, Valenti, Stefano

“…Optical to near-infrared observations of a transient coincident with the detection of the gravitational-wave signature of a binary neutron-star merger and a…”
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FLEET: A Redshift-agnostic Machine Learning Pipeline to Rapidly Identify Hydrogen-poor Superluminous Supernovae by Gomez, Sebastian, Berger, Edo, Blanchard, Peter K., Hosseinzadeh, Griffin, Nicholl, Matt, Villar, V. Ashley, Yin, Yao

“…Over the past decade wide-field optical time-domain surveys have increased the discovery rate of transients to the point that 10% are being spectroscopically…”
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Magnetar Models of Superluminous Supernovae from the Dark Energy Survey: Exploring Redshift Evolution by Hsu, Brian, Hosseinzadeh, Griffin, Berger, Edo

“…Abstract Superluminous supernovae (SLSNe) are luminous transients that can be detected to high redshifts with upcoming optical time-domain surveys such as the…”
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High-resolution Spectroscopy of SN 2023ixf’s First Week: Engulfing the Asymmetric Circumstellar Material by Smith, Nathan, Pearson, Jeniveve, Sand, David J., Ilyin, Ilya, Bostroem, K. Azalee, Hosseinzadeh, Griffin, Shrestha, Manisha

“…Abstract We present a series of high-resolution echelle spectra of SN 2023ixf in M101, obtained nightly during the first week or so after discovery using PEPSI…”
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Photometrically Classified Superluminous Supernovae from the Pan-STARRS1 Medium Deep Survey: A Case Study for Science with Machine-learning-based Classification by Hsu, Brian, Hosseinzadeh, Griffin, Villar, V. Ashley, Berger, Edo

“…Abstract With the upcoming Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), it is expected that only ∼0.1% of all transients will be…”
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1ES 1927+654: An AGN Caught Changing Look on a Timescale of Months by Trakhtenbrot, Benny, Arcavi, Iair, MacLeod, Chelsea L., Ricci, Claudio, Kara, Erin, Graham, Melissa L., Stern, Daniel, Harrison, Fiona A., Burke, Jamison, Hiramatsu, Daichi, Hosseinzadeh, Griffin, Howell, D. Andrew, Smartt, Stephen J., Rest, Armin, Prieto, Jose L., Shappee, Benjamin J., Holoien, Thomas W.-S., Bersier, David, Filippenko, Alexei V., Brink, Thomas G., Zheng, WeiKang, Li, Ruancun, Remillard, Ronald A., Loewenstein, Michael

“…We study the sudden optical and ultraviolet (UV) brightening of 1ES 1927+654, which until now was known as a narrow-line active galactic nucleus (AGN). 1ES…”
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The Luminous and Double-peaked Type Ic Supernova 2019stc: Evidence for Multiple Energy Sources by Gomez, Sebastian, Berger, Edo, Hosseinzadeh, Griffin, Blanchard, Peter K., Nicholl, Matt, Villar, V. Ashley

“…Abstract We present optical photometry and spectroscopy of SN 2019stc (=ZTF19acbonaa), an unusual Type Ic supernova (SN Ic) at a redshift of z = 0.117. SN…”
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Late-time Hubble Space Telescope Observations of a Hydrogen-poor Superluminous Supernova Reveal the Power-law Decline of a Magnetar Central Engine by Blanchard, Peter K., Berger, Edo, Nicholl, Matt, Chornock, Ryan, Gomez, Sebastian, Hosseinzadeh, Griffin

“…Abstract The light-curve diversity of hydrogen-poor superluminous supernovae (SLSNe) has kept open the possibility that multiple power sources account for the…”
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SuperRAENN: A Semisupervised Supernova Photometric Classification Pipeline Trained on Pan-STARRS1 Medium-Deep Survey Supernovae by Villar, V. Ashley, Hosseinzadeh, Griffin, Berger, Edo, Ntampaka, Michelle, Jones, David O., Challis, Peter, Chornock, Ryan, Drout, Maria R., Foley, Ryan J., Kirshner, Robert P., Lunnan, Ragnhild, Margutti, Raffaella, Milisavljevic, Dan, Sanders, Nathan, Pan, Yen-Chen, Rest, Armin, Scolnic, Daniel M., Magnier, Eugene, Metcalfe, Nigel, Wainscoat, Richard, Waters, Christopher

“…Automated classification of supernovae (SNe) based on optical photometric light-curve information is essential in the upcoming era of wide-field time domain…”
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Optical Observations and Modeling of the Superluminous Supernova 2018lfe by Yin, Yao, Gomez, Sebastian, Berger, Edo, Hosseinzadeh, Griffin, Nicholl, Matt, Blanchard, Peter K.

“…Abstract We present optical imaging and spectroscopy of SN 2018lfe, which we classify as a Type I superluminous supernova (SLSN-I) at a redshift of z = 0.3501…”
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SN 2019ehk: A Double-peaked Ca-rich Transient with Luminous X-Ray Emission and Shock-ionized Spectral Features by Jacobson-Galán, Wynn V., Margutti, Raffaella, Kilpatrick, Charles D., Hiramatsu, Daichi, Perets, Hagai, Khatami, David, Foley, Ryan J., Raymond, John, Yoon, Sung-Chul, Bobrick, Alexey, Zenati, Yossef, Galbany, Lluís, Andrews, Jennifer, Brown, Peter J., Cartier, Régis, Coppejans, Deanne L., Dimitriadis, Georgios, Dobson, Matthew, Hajela, Aprajita, Howell, D. Andrew, Kuncarayakti, Hanindyo, Milisavljevic, Danny, Rahman, Mohammed, Rojas-Bravo, César, Sand, David J., Shepherd, Joel, Smartt, Stephen J., Stacey, Holland, Stroh, Michael, Swift, Jonathan J., Terreran, Giacomo, Vinko, Jozsef, Wang, Xiaofeng, Anderson, Joseph P., Baron, Edward A., Berger, Edo, Blanchard, Peter K., Burke, Jamison, Coulter, David A., DeMarchi, Lindsay, DerKacy, James M., Fremling, Christoffer, Gomez, Sebastian, Gromadzki, Mariusz, Hosseinzadeh, Griffin, Kasen, Daniel, Kriskovics, Levente, McCully, Curtis, Müller-Bravo, Tomás E., Nicholl, Matt, Ordasi, András, Pellegrino, Craig, Piro, Anthony L., Pál, András, Ren, Juanjuan, Rest, Armin, Rich, R. Michael, Sai, Hanna, Sárneczky, Krisztián, Shen, Ken J., Short, Philip, Siebert, Matthew R., Stauffer, Candice, Szakáts, Róbert, Zhang, Xinhan, Zhang, Jujia, Zhang, Kaicheng

“…We present panchromatic observations and modeling of the Calcium-rich supernova (SN) 2019ehk in the star-forming galaxy M100 (d 16.2 Mpc) starting 10 hr after…”
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Energetic eruptions leading to a peculiar hydrogen-rich explosion of a massive star by Arcavi, Iair, Howell, D. Andrew, Kasen, Daniel, Bildsten, Lars, Hosseinzadeh, Griffin, McCully, Curtis, Wong, Zheng Chuen, Katz, Sarah Rebekah, Gal-Yam, Avishay, Sollerman, Jesper, Taddia, Francesco, Leloudas, Giorgos, Fremling, Christoffer, Nugent, Peter E., Horesh, Assaf, Mooley, Kunal, Rumsey, Clare, Cenko, S. Bradley, Graham, Melissa L., Perley, Daniel A., Nakar, Ehud, Shaviv, Nir J., Bromberg, Omer, Shen, Ken J., Ofek, Eran O., Cao, Yi, Wang, Xiaofeng, Huang, Fang, Rui, Liming, Zhang, Tianmeng, Li, Wenxiong, Li, Zhitong, Zhang, Jujia, Valenti, Stefano, Guevel, David, Shappee, Benjamin, Kochanek, Christopher S., Holoien, Thomas W.-S., Filippenko, Alexei V., Fender, Rob, Nyholm, Anders, Yaron, Ofer, Kasliwal, Mansi M., Sullivan, Mark, Blagorodnova, Nadja, Walters, Richard S., Lunnan, Ragnhild, Khazov, Danny, Andreoni, Igor, Laher, Russ R., Konidaris, Nick, Wozniak, Przemek, Bue, Brian

“…Observations of an event (several energetic eruptions leading to a terminal explosion that is surprisingly hydrogen-rich) with the spectrum of a supernova do…”
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Still Brighter than Pre-explosion, SN 2012Z Did Not Disappear: Comparing Hubble Space Telescope Observations a Decade Apart by McCully, Curtis, Jha, Saurabh W., Scalzo, Richard A., Howell, D. Andrew, Foley, Ryan J., Zeng, Yaotian, Liu, Zheng-Wei, Hosseinzadeh, Griffin, Bildsten, Lars, Riess, Adam G., Kirshner, Robert P., Marion, G. H., Camacho-Neves, Yssavo

“…Abstract Type Iax supernovae (SNe Iax) represent the largest class of peculiar white dwarf supernovae. The type Iax SN 2012Z in NGC 1309 is the only white…”
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Early Spectroscopy and Dense Circumstellar Medium Interaction in SN 2023ixf by Bostroem, K. Azalee, Pearson, Jeniveve, Shrestha, Manisha, Sand, David J., Valenti, Stefano, Jha, Saurabh W., Andrews, Jennifer E., Smith, Nathan, Terreran, Giacomo, Green, Elizabeth, Dong, Yize, Lundquist, Michael, Haislip, Joshua, Hoang, Emily T., Hosseinzadeh, Griffin, Janzen, Daryl, Jencson, Jacob E., Kouprianov, Vladimir, Paraskeva, Emmy, Meza Retamal, Nicolas E., Reichart, Daniel E., Arcavi, Iair, Bonanos, Alceste Z., Coughlin, Michael W., Dobson, Ross, Farah, Joseph, Galbany, Lluís, Gutiérrez, Claudia, Hawley, Suzanne, Hebb, Leslie, Hiramatsu, Daichi, Howell, D. Andrew, Iijima, Takashi, Ilyin, Ilya, Jhass, Kiran, McCully, Curtis, Moran, Sean, Morris, Brett M., Mura, Alessandra C., Müller-Bravo, Tomás E., Munday, James, Newsome, Megan, Pabst, Maria Th, Ochner, Paolo, Gonzalez, Estefania Padilla, Pastorello, Andrea, Pellegrino, Craig, Piscarreta, Lara, Ravi, Aravind P., Reguitti, Andrea, Salo, Laura, Vinkó, József, de Vos, Kellie, Wheeler, J. C., Williams, G. Grant, Wyatt, Samuel

“…Abstract We present the optical spectroscopic evolution of SN 2023ixf seen in subnight cadence spectra from 1.18 to 15 days after explosion. We identify…”
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Type Ibn Supernovae Show Photometric Homogeneity and Spectral Diversity at Maximum Light by Hosseinzadeh, Griffin, Arcavi, Iair, Valenti, Stefano, McCully, Curtis, Howell, D. Andrew, Johansson, Joel, Sollerman, Jesper, Pastorello, Andrea, Benetti, Stefano, Cao, Yi, Cenko, S. Bradley, Clubb, Kelsey I., Corsi, Alessandra, Duggan, Gina, Elias-Rosa, Nancy, Filippenko, Alexei V., Fox, Ori D., Fremling, Christoffer, Horesh, Assaf, Karamehmetoglu, Emir, Kasliwal, Mansi, Marion, G. H., Ofek, Eran, Sand, David, Taddia, Francesco, Zheng, WeiKang, Fraser, Morgan, Gal-Yam, Avishay, Inserra, Cosimo, Laher, Russ, Masci, Frank, Rebbapragada, Umaa, Smartt, Stephen, Smith, Ken W., Sullivan, Mark, Surace, Jason, Wo niak, Przemek

“…Type Ibn supernovae (SNe) are a small yet intriguing class of explosions whose spectra are characterized by low-velocity helium emission lines with little to…”
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Short-lived Circumstellar Interaction in the Low-luminosity Type IIP SN 2016bkv by Hosseinzadeh, Griffin, Valenti, Stefano, McCully, Curtis, Howell, D. Andrew, Arcavi, Iair, Jerkstrand, Anders, Guevel, David, Tartaglia, Leonardo, Rui, Liming, Mo, Jun, Wang, Xiaofeng, Huang, Fang, Song, Hao, Zhang, Tianmeng, Itagaki, Koichi

“…While interaction with circumstellar material is known to play an important role in Type IIn supernovae (SNe), analyses of the more common SNe IIP and IIL have…”
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SN 2016iet: The Pulsational or Pair Instability Explosion of a Low-metallicity Massive CO Core Embedded in a Dense Hydrogen-poor Circumstellar Medium by Gomez, Sebastian, Berger, Edo, Nicholl, Matt, Blanchard, Peter K., Villar, V. Ashley, Patton, Locke, Chornock, Ryan, Leja, Joel, Hosseinzadeh, Griffin, Cowperthwaite, Philip S.

“…We present optical photometry and spectroscopy of SN 2016iet (=Gaia16bvd=PS17brq), an unprecedented Type I supernova (SN I) at z = 0.0676 with no obvious…”
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Luminous Type II Short-Plateau Supernovae 2006Y, 2006ai, and 2016egz: A Transitional Class from Stripped Massive Red Supergiants by Hiramatsu, Daichi, Howell, D. Andrew, Moriya, Takashi J., Goldberg, Jared A., Hosseinzadeh, Griffin, Arcavi, Iair, Anderson, Joseph P., Gutiérrez, Claudia P., Burke, Jamison, McCully, Curtis, Valenti, Stefano, Galbany, Lluís, Fang, Qiliang, Maeda, Keiichi, Folatelli, Gastón, Hsiao, Eric Y., Morrell, Nidia I., Phillips, Mark M., Stritzinger, Maximilian D., Suntzeff, Nicholas B., Gromadzki, Mariusz, Maguire, Kate, Müller-Bravo, Tomás E., Young, David R.

“…Abstract The diversity of Type II supernovae (SNe II) is thought to be driven mainly by differences in their progenitor’s hydrogen-rich (H-rich) envelope mass,…”
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