Zobrazeno 1 - 10
of 129
pro vyhledávání: '"Vikram Ravi"'
Autor:
Jaquelin Cochran, Paul Denholm, Meghan Mooney, Daniel Steinberg, Elaine Hale, Garvin Heath, Bryan Palmintier, David Keyser, Devonie Oleson, Doug Arent, Henry Horsey, Anthony Fontanini, Matteo Muratori, Jennie Jorgenson, Vikram Ravi, Brady Cowiestoll, Ben Sigrin, Kelsey Horowitz, Himanshu Jain, Matt Irish, Scott Nicholson, George Ban-Weiss, Harvey Cutler
Publikováno v:
Cell Reports Sustainability, Vol 1, Iss 4, Pp 100078- (2024)
Summary: Climate change has prompted many communities to set targets for carbon-free power supplies, but they often lack data-driven strategies to achieve them. We present a comprehensive analysis of an entirely renewable electric power system that c
Externí odkaz:
https://doaj.org/article/b91e7823d89847028871dc8da81f2298
Autor:
Kaustav K. Das, Christoffer Fremling, Mansi M. Kasliwal, Steve Schulze, Jesper Sollerman, Viraj Karambelkar, Sam Rose, Shreya Anand, Igor Andreoni, Marie Aubert, Sean J. Brennan, S. Bradley Cenko, Michael W. Coughlin, B. O’Connor, Kishalay De, Jim Fuller, Matthew Graham, Erica Hammerstein, Annastasia Haynie, K-Ryan Hinds, Io Kleiser, S. R. Kulkarni, Zeren Lin, Chang Liu, Ashish A. Mahabal, Christopher Martin, Adam A. Miller, James D. Neill, Daniel A. Perley, Priscila J. Pessi, Nikolaus Z. Prusinski, Josiah Purdum, Vikram Ravi, Ben Rusholme, Samantha Wu, Avery Wold, Lin Yan
Publikováno v:
The Astrophysical Journal Letters, Vol 969, Iss 1, p L11 (2024)
We present SN 2023zaw—a subluminous ( M _r = −16.7 mag) and rapidly evolving supernova ( t _1/2, _r = 4.9 days), with the lowest nickel mass (≈0.002 M _⊙ ) measured among all stripped-envelope supernovae discovered to date. The photospheric s
Externí odkaz:
https://doaj.org/article/a43cea876ff34b81badd2315d9e065ff
Autor:
Gokul P. Srinivasaragavan, Vishwajeet Swain, Brendan O’Connor, Shreya Anand, Tomás Ahumada, Daniel Perley, Robert Stein, Jesper Sollerman, Christoffer Fremling, S. Bradley Cenko, S. Antier, Nidhal Guessoum, Thomas Hussenot-Desenonges, Patrice Hello, Stephen Lesage, Erica Hammerstein, M. Coleman Miller, Igor Andreoni, Varun Bhalerao, Joshua S. Bloom, Anirban Dutta, Avishay Gal-Yam, K-Ryan Hinds, Amruta Jaodand, Mansi Kasliwal, Harsh Kumar, Alexander S. Kutyrev, Fabio Ragosta, Vikram Ravi, Kritti Sharma, Rishabh Singh Teja, Sheng Yang, G. C. Anupama, Eric C. Bellm, Michael W. Coughlin, Ashish A. Mahabal, Frank J. Masci, Utkarsh Pathak, Josiah Purdum, Oliver J. Roberts, Roger Smith, Avery Wold
Publikováno v:
The Astrophysical Journal Letters, Vol 960, Iss 2, p L18 (2024)
We report observations of the optical counterpart of the long gamma-ray burst (GRB) GRB 230812B and its associated supernova (SN) SN 2023pel. The proximity ( z = 0.36) and high energy ( E _γ _,iso ∼ 10 ^53 erg) make it an important event to study
Externí odkaz:
https://doaj.org/article/527707e0b82e453687c61f6261c7de4e
Autor:
Casey J. Law, Kritti Sharma, Vikram Ravi, Ge Chen, Morgan Catha, Liam Connor, Jakob T. Faber, Gregg Hallinan, Charlie Harnach, Greg Hellbourg, Rick Hobbs, David Hodge, Mark Hodges, James W. Lamb, Paul Rasmussen, Myles B. Sherman, Jun Shi, Dana Simard, Reynier Squillace, Sander Weinreb, David P. Woody, Nitika Yadlapalli Yurk
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 1, p 29 (2024)
Fast radio bursts (FRBs) are a powerful and mysterious new class of transients that are luminous enough to be detected at cosmological distances. By associating FRBs to host galaxies, we can measure intrinsic and environmental properties that test FR
Externí odkaz:
https://doaj.org/article/912a27f541e047f8ae8960a14fe50be3
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 221 (2024)
Line-intensity mapping is a promising probe of the Universe’s large-scale structure. We explore the sensitivity of the DSA-2000, a forthcoming array consisting of over 2000 dishes, to the statistical power spectrum of neutral hydrogen’s 21 cm emi
Externí odkaz:
https://doaj.org/article/7567d4ed14314dca9d5e04329747ecc9
Autor:
Myles B. Sherman, Liam Connor, Vikram Ravi, Casey Law, Ge Chen, Morgan Catha, Jakob T. Faber, Gregg Hallinan, Charlie Harnach, Greg Hellbourg, Rick Hobbs, David Hodge, Mark Hodges, James W. Lamb, Paul Rasmussen, Kritti Sharma, Jun Shi, Dana Simard, Jean Somalwar, Reynier Squillace, Sander Weinreb, David P. Woody, Nitika Yadlapalli, The Deep Synoptic Array team
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 2, p 131 (2024)
We report on a full-polarization analysis of the first 25 as yet nonrepeating fast radio bursts (FRBs) detected at 1.4 GHz by the 110-antenna Deep Synoptic Array (DSA-110) during commissioning observations. We present details of the data-reduction, c
Externí odkaz:
https://doaj.org/article/32638dc734dc4d56a0f914e61dab1b47
Autor:
Yun Li, Vikram Ravi, Garvin Heath, Jiachen Zhang, Pouya Vahmani, Sang-Mi Lee, Xinqiu Zhang, Kelly T Sanders, George A Ban-Weiss
Publikováno v:
Environmental Research Letters, Vol 19, Iss 3, p 034015 (2024)
To demonstrate how a mega city can lead in decarbonizing beyond legal mandates, the city of Los Angeles (LA) developed science-based, feasible pathways towards utilizing 100% renewable energy for its municipally-owned electric utility. Aside from dec
Externí odkaz:
https://doaj.org/article/4b6393490a4f4572a972abbb45f5e470
Autor:
Myles B. Sherman, Liam Connor, Vikram Ravi, Casey Law, Ge Chen, Kritti Sharma, Morgan Catha, Jakob T. Faber, Gregg Hallinan, Charlie Harnach, Greg Hellbourg, Rick Hobbs, David Hodge, Mark Hodges, James W. Lamb, Paul Rasmussen, Jun Shi, Dana Simard, Jean Somalwar, Reynier Squillace, Sander Weinreb, David P. Woody, Nitika Yadlapalli, The Deep Synoptic Array Team
Publikováno v:
The Astrophysical Journal Letters, Vol 957, Iss 1, p L8 (2023)
Faraday rotation measures (RMs) of fast radio bursts (FRBs) offer the prospect of directly measuring extragalactic magnetic fields. We present an analysis of the RMs of 10 as yet nonrepeating FRBs detected and localized to host galaxies with robust r
Externí odkaz:
https://doaj.org/article/6032f35c7ebc4b05aa78962b0d1f4027
Autor:
Yuhan Yao, Vikram Ravi, Suvi Gezari, Sjoert van Velzen, Wenbin Lu, Steve Schulze, Jean J. Somalwar, S. R. Kulkarni, Erica Hammerstein, Matt Nicholl, Matthew J. Graham, Daniel A. Perley, S. Bradley Cenko, Robert Stein, Angelo Ricarte, Urmila Chadayammuri, Eliot Quataert, Eric C. Bellm, Joshua S. Bloom, Richard Dekany, Andrew J. Drake, Steven L. Groom, Ashish A. Mahabal, Thomas A. Prince, Reed Riddle, Ben Rusholme, Yashvi Sharma, Jesper Sollerman, Lin Yan
Publikováno v:
The Astrophysical Journal Letters, Vol 955, Iss 1, p L6 (2023)
We conduct a systematic tidal disruption event (TDE) demographics analysis using the largest sample of optically selected TDEs. A flux-limited, spectroscopically complete sample of 33 TDEs is constructed using the Zwicky Transient Facility over 3 yr
Externí odkaz:
https://doaj.org/article/edf211daf8984e0991adc8dd16ff8361
Autor:
Liam Connor, Vikram Ravi, Morgan Catha, Ge Chen, Jakob T. Faber, James W. Lamb, Gregg Hallinan, Charlie Harnach, Greg Hellbourg, Rick Hobbs, David Hodge, Mark Hodges, Casey Law, Paul Rasmussen, Jack Sayers, Kritti Sharma, Myles B. Sherman, Jun Shi, Dana Simard, Jean Somalwar, Reynier Squillace, Sander Weinreb, David P. Woody, Nitika Yadlapalli, The Deep Synoptic Array team
Publikováno v:
The Astrophysical Journal Letters, Vol 949, Iss 2, p L26 (2023)
The hot gas that constitutes the intracluster medium (ICM) has been studied at X-ray and millimeter/submillimeter wavelengths (Sunyaev–Zel’dovich effect) for decades. Fast radio bursts (FRBs) offer an additional method of directly measuring the I
Externí odkaz:
https://doaj.org/article/0d7bc3389c62464ab067649cd8dd4bbf