Zobrazeno 1 - 10
of 188
pro vyhledávání: '"Benjamin J. Shappee"'
Extrapolation of Type Ia Supernova Spectra into the Near-infrared Using Principal Component Analysis
Autor:
Anthony Burrow, E. Baron, Christopher R. Burns, Eric Y. Hsiao, Jing Lu, Chris Ashall, Peter J. Brown, James M. DerKacy, G. Folatelli, Lluís Galbany, P. Hoeflich, Kevin Krisciunas, N. Morrell, M. M. Phillips, Benjamin J. Shappee, Maximilian D. Stritzinger, Nicholas B. Suntzeff
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 1, p 55 (2024)
We present a method of extrapolating the spectroscopic behavior of Type Ia supernovae (SNe Ia) in the near-infrared (NIR) wavelength regime up to 2.30 μ m using optical spectroscopy. Such a process is useful for accurately estimating K-corrections a
Externí odkaz:
https://doaj.org/article/888908ee85ce4db3a942fab80d781ff7
Autor:
Eric Gaidos, Thanawuth Thanathibodee, Andrew Hoffman, Joel Ong, Jason Hinkle, Benjamin J. Shappee, Andrea Banzatti
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 167 (2024)
Transition disks, with inner regions depleted in dust and gas, could represent later stages of protoplanetary disk evolution when newly formed planets are emerging. The PDS 70 system has attracted particular interest because of the presence of two gi
Externí odkaz:
https://doaj.org/article/bac415e19e5441ed80fcd7fa902e7562
Autor:
Lindsey A. Kwok, Matthew R. Siebert, Joel Johansson, Saurabh W. Jha, Stéphane Blondin, Luc Dessart, Ryan J. Foley, D. John Hillier, Conor Larison, Rüdiger Pakmor, Tea Temim, Jennifer E. Andrews, Katie Auchettl, Carles Badenes, Barna Barnabas, K. Azalee Bostroem, Max J. Brenner Newman, Thomas G. Brink, María José Bustamante-Rosell, Yssavo Camacho-Neves, Alejandro Clocchiatti, David A. Coulter, Kyle W. Davis, Maxime Deckers, Georgios Dimitriadis, Yize Dong, Joseph Farah, Alexei V. Filippenko, Andreas Flörs, Ori D. Fox, Peter Garnavich, Estefania Padilla Gonzalez, Or Graur, Franz-Josef Hambsch, Griffin Hosseinzadeh, D. Andrew Howell, John P. Hughes, Wolfgang E. Kerzendorf, Xavier K. Saux, Keiichi Maeda, Kate Maguire, Curtis McCully, Cassidy Mihalenko, Megan Newsome, John T. O’Brien, Jeniveve Pearson, Craig Pellegrino, Justin D. R. Pierel, Abigail Polin, Armin Rest, César Rojas-Bravo, David J. Sand, Michaela Schwab, Melissa Shahbandeh, Manisha Shrestha, Nathan Smith, Louis-Gregory Strolger, Tamás Szalai, Kirsty Taggart, Giacomo Terreran, Jacco H. Terwel, Samaporn Tinyanont, Stefano Valenti, József Vinkó, J. Craig Wheeler, Yi Yang, WeiKang Zheng, Chris Ashall, James M. DerKacy, Lluís Galbany, Peter Hoeflich, Thomas de Jaeger, Jing Lu, Justyn Maund, Kyle Medler, Nidia Morell, Benjamin J. Shappee, Maximilian Stritzinger, Nicholas Suntzeff, Michael Tucker, Lifan Wang
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 135 (2024)
We present an analysis of ground-based and JWST observations of SN 2022pul, a peculiar “03fg-like” (or “super-Chandrasekhar”) Type Ia supernova (SN Ia), in the nebular phase at 338 days postexplosion. Our combined spectrum continuously covers
Externí odkaz:
https://doaj.org/article/497a3681f5304dde951f637691196378
Autor:
Arianna M. Dwomoh, Erik R. Peterson, Daniel Scolnic, Chris Ashall, James M. DerKacy, Aaron Do, Joel Johansson, David O. Jones, Adam G. Riess, Benjamin J. Shappee
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 1, p 90 (2024)
The study of supernova (SN) siblings, supernovae with the same host galaxy, is an important avenue for understanding and measuring the properties of Type Ia SN Ia light curves (LCs). Thus far, sibling analyses have mainly focused on optical LC data.
Externí odkaz:
https://doaj.org/article/c5277255e0b143f9a4d22c89754907b0
Autor:
Klaus W. Hodapp, Eric Gaidos, Matthew A. Kenworthy, Michael Tucker, Benjamin J. Shappee, Anna V. Payne, Aaron Do
Publikováno v:
The Astronomical Journal, Vol 167, Iss 2, p 85 (2024)
A previously unremarkable star near the Canis Major OB1/R1 association underwent an episode of multiple deep brightness minima. Light curves based on archival Gaia, Zwicky Transient Facility (ZTF), and NEOWISE data and additional observations from th
Externí odkaz:
https://doaj.org/article/26e1507b99894730bc93fae400b61609
Autor:
Lindsey A. Kwok, Saurabh W. Jha, Tea Temim, Ori D. Fox, Conor Larison, Yssavo Camacho-Neves, Max J. Brenner Newman, Justin D. R. Pierel, Ryan J. Foley, Jennifer E. Andrews, Carles Badenes, Barnabas Barna, K. Azalee Bostroem, Maxime Deckers, Andreas Flörs, Peter Garnavich, Melissa L. Graham, Or Graur, Griffin Hosseinzadeh, D. Andrew Howell, John P. Hughes, Joel Johansson, Sarah Kendrew, Wolfgang E. Kerzendorf, Keiichi Maeda, Kate Maguire, Curtis McCully, John T. O’Brien, Armin Rest, David J. Sand, Melissa Shahbandeh, Louis-Gregory Strolger, Tamás Szalai, Chris Ashall, E. Baron, Chris R. Burns, James M. DerKacy, Tyco Mera Evans, Alec Fisher, Lluís Galbany, Peter Hoeflich, Eric Hsiao, Thomas de Jaeger, Emir Karamehmetoglu, Kevin Krisciunas, Sahana Kumar, Jing Lu, Justyn Maund, Paolo A. Mazzali, Kyle Medler, Nidia Morrell, Mark. M. Phillips, Benjamin J. Shappee, Maximilian Stritzinger, Nicholas Suntzeff, Charles Telesco, Michael Tucker, Lifan Wang
Publikováno v:
The Astrophysical Journal Letters, Vol 944, Iss 1, p L3 (2023)
We present JWST near-infrared (NIR) and mid-infrared (MIR) spectroscopic observations of the nearby normal Type Ia supernova (SN) SN 2021aefx in the nebular phase at +255 days past maximum light. Our Near Infrared Spectrograph (NIRSpec) and Mid Infra
Externí odkaz:
https://doaj.org/article/3c942f8603c6445e9166b74930b906d4
Autor:
Matthew R. Siebert, Lindsey A. Kwok, Joel Johansson, Saurabh W. Jha, Stéphane Blondin, Luc Dessart, Ryan J. Foley, D. John Hillier, Conor Larison, Rüdiger Pakmor, Tea Temim, Jennifer E. Andrews, Katie Auchettl, Carles Badenes, Barnabas Barna, K. Azalee Bostroem, Max J. Brenner Newman, Thomas G. Brink, María José Bustamante-Rosell, Yssavo Camacho-Neves, Alejandro Clocchiatti, David A. Coulter, Kyle W. Davis, Maxime Deckers, Georgios Dimitriadis, Yize Dong, Joseph Farah, Alexei V. Filippenko, Andreas Flörs, Ori D. Fox, Peter Garnavich, Estefania Padilla Gonzalez, Or Graur, Franz-Josef Hambsch, Griffin Hosseinzadeh, D. Andrew Howell, John P. Hughes, Wolfgang E. Kerzendorf, Xavier K. Le Saux, Keiichi Maeda, Kate Maguire, Curtis McCully, Cassidy Mihalenko, Megan Newsome, John T. O’Brien, Jeniveve Pearson, Craig Pellegrino, Justin D. R. Pierel, Abigail Polin, Armin Rest, César Rojas-Bravo, David J. Sand, Michaela Schwab, Melissa Shahbandeh, Manisha Shrestha, Nathan Smith, Louis-Gregory Strolger, Tamás Szalai, Kirsty Taggart, Giacomo Terreran, Jacco H. Terwel, Samaporn Tinyanont, Stefano Valenti, József Vinkó, J. Craig Wheeler, Yi Yang, WeiKang Zheng, Chris Ashall, James M. DerKacy, Lluís Galbany, Peter Hoeflich, Eric Hsiao, Thomas de Jaeger, Jing Lu, Justyn Maund, Kyle Medler, Nidia Morrell, Benjamin J. Shappee, Maximilian Stritzinger, Nicholas Suntzeff, Michael Tucker, Lifan Wang
Publikováno v:
The Astrophysical Journal, Vol 960, Iss 1, p 88 (2023)
Nebular-phase observations of peculiar Type Ia supernovae (SNe Ia) provide important constraints on progenitor scenarios and explosion dynamics for both these rare SNe and the more common, cosmologically useful SNe Ia. We present observations from an
Externí odkaz:
https://doaj.org/article/f625b23a3862411eaabce281637e29ab
Autor:
Jeniveve Pearson, David J. Sand, Peter Lundqvist, Lluís Galbany, Jennifer E. Andrews, K. Azalee Bostroem, Yize Dong, Emily Hoang, Griffin Hosseinzadeh, Daryl Janzen, Jacob E. Jencson, Michael J. Lundquist, Darshana Mehta, Nicolás Meza Retamal, Manisha Shrestha, Stefano Valenti, Samuel Wyatt, Joseph P. Anderson, Chris Ashall, Katie Auchettl, Eddie Baron, Stéphane Blondin, Christopher R. Burns, Yongzhi Cai, Ting-Wan Chen, Laura Chomiuk, David A. Coulter, Dane Cross, Kyle W. Davis, Thomas de Jaeger, James M. DerKacy, Dhvanil D. Desai, Georgios Dimitriadis, Aaron Do, Joseph R. Farah, Ryan J. Foley, Mariusz Gromadzki, Claudia P. Gutiérrez, Joshua Haislip, Jonay I. González Hernández, Jason T. Hinkle, Willem B. Hoogendam, D. Andrew Howell, Peter Hoeflich, Eric Hsiao, Mark E. Huber, Saurabh W. Jha, Cristina Jiménez Palau, Charles D. Kilpatrick, Vladimir Kouprianov, Sahana Kumar, Lindsey A. Kwok, Conor Larison, Natalie LeBaron, Xavier Le Saux, Jing Lu, Curtis McCully, Tycho Mera Evans, Peter Milne, Maryam Modjaz, Nidia Morrell, Tomás E. Müller-Bravo, Megan Newsome, Matt Nicholl, Estefania Padilla Gonzalez, Anna V. Payne, Craig Pellegrino, Kim Phan, Jonathan Pineda-García, Anthony L. Piro, Lara Piscarreta, Abigail Polin, Daniel E. Reichart, César Rojas-Bravo, Stuart D. Ryder, Irene Salmaso, Michaela Schwab, Melissa Shahbandeh, Benjamin J. Shappee, Matthew R. Siebert, Nathan Smith, Jay Strader, Kirsty Taggart, Giacomo Terreran, Samaporn Tinyanont, M. A. Tucker, Giorgio Valerin, D. R. Young
Publikováno v:
The Astrophysical Journal, Vol 960, Iss 1, p 29 (2023)
We present optical, infrared, ultraviolet, and radio observations of SN 2022xkq, an underluminous fast-declining Type Ia supernova (SN Ia) in NGC 1784 ( D ≈ 31 Mpc), from
Externí odkaz:
https://doaj.org/article/0d3724b4428e48fe8aa08876a4a65aba
Autor:
Daniel R. Hey, Daniel Huber, Benjamin J. Shappee, Joss Bland-Hawthorn, Thor Tepper-García, Robyn Sanderson, Sukanya Chakrabarti, Nicholas Saunders, Jason A. S. Hunt, Timothy R. Bedding, John Tonry
Publikováno v:
The Astronomical Journal, Vol 166, Iss 6, p 249 (2023)
The Galactic bulge is critical to our understanding of the Milky Way. However, due to the lack of reliable stellar distances, the structure and kinematics of the bulge/bar beyond the Galactic center have remained largely unexplored. Here, we present
Externí odkaz:
https://doaj.org/article/cd1f668a325743c1a0a983eee320093c
Autor:
Anna V. Payne, Katie Auchettl, Benjamin J. Shappee, Christopher S. Kochanek, Patricia T. Boyd, Thomas W.-S. Holoien, Michael M. Fausnaugh, Chris Ashall, Jason T. Hinkle, Patrick J. Vallely, K. Z. Stanek, Todd A. Thompson
Publikováno v:
The Astrophysical Journal, Vol 951, Iss 2, p 134 (2023)
ASASSN-14ko is a nuclear transient at the center of the AGN ESO 253−G003 that undergoes periodic flares. Optical flares were first observed in 2014 by the All-Sky Automated Survey for Supernovae (ASAS-SN) and their peak times are well-modeled with
Externí odkaz:
https://doaj.org/article/72ceccc3a7854e868ae3e1ce66dadf42