no code implementations • 25 Feb 2021 • Josiah N. Purdum, Zhong-Yi Lin, Bryce T. Bolin, Kritti Sharma, Phillip I. Choi, Varun Bhalerao, Harsh Kumar, Robert Quimby, Joannes C. Van Roestel, Chengxing Zhai, Yanga R. Fernandez, Josef Hanuš, Carey M. Lisse, Dennis Bodewits, Christoffer Fremling, Nathan Ryan Golovich, Chen-Yen Hsu, Wing-Huen Ip, Chow-Choong Ngeow, Navtej S. Saini, Michael Shao, Yuhan Yao, Tomás Ahumada, Shreya Anand, Igor Andreoni, Kevin B. Burdge, Rick Burruss, Chan-Kao Chang, Chris M. Copperwheat, Michael Coughlin, Kishalay De, Richard Dekany, Alexandre Delacroix, Andrew Drake, Dmitry Duev, Matthew Graham, David Hale, Erik C. Kool, Mansi M. Kasliwal, Iva S. Kostadinova, Shrinivas R. Kulkarni, Russ R. Laher, Ashish Mahabal, Frank J. Masci, Przemyslaw J. Mróz, James D. Neill, Reed Riddle, Hector Rodriguez, Roger M. Smith, Richard Walters, Lin Yan, Jeffry Zolkower
We observed Episodically Active Asteroid (6478) Gault in 2020 with multiple telescopes in Asia and North America and have found that it is no longer active after its recent outbursts at the end of 2018 and start of 2019.
Time Series Analysis Earth and Planetary Astrophysics
no code implementations • 11 Jan 2021 • Kishalay De, Mansi M. Kasliwal, Matthew J. Hankins, Jennifer L. Sokoloski, Scott M. Adams, Michael C. B. Ashley, Aliya-Nur Babul, Ashot Bagdasaryan, Alexander Delacroix, Richard Dekany, Timothee Greffe, David Hale, Jacob E. Jencson, Viraj R. Karambelkar, Ryan M. Lau, Ashish Mahabal, Daniel McKenna, Anna M. Moore, Eran O. Ofek, Manasi Sharma, Roger M. Smith, Jamie Soon, Roberto Soria, Gokul Srinivasaragavan, Samaporn Tinyanont, Tony Travouillon
We perform the first quantitative simulation of a $3\pi$ time domain survey to estimate the Galactic nova rate using PGIR, and derive a rate of $\approx 46\pm13$ yr$^{-1}$.
High Energy Astrophysical Phenomena Astrophysics of Galaxies Solar and Stellar Astrophysics
no code implementations • 4 Sep 2020 • Kishalay De, U. Christoffer Fremling, Avishay Gal-Yam, Ofer Yaron, Mansi M. Kasliwal, S. R. Kulkarni
The presence of H, together with the large [Ca II]/[O I] ratio ($\approx10-15$) in the nebular phase is consistent with SN 2019ehk being a Type IIb core-collapse supernova from a stripped low mass ($\approx9-9. 5$ M$_\odot$) progenitor, similar to the Ca-rich SN IIb iPTF 15eqv.
High Energy Astrophysical Phenomena Solar and Stellar Astrophysics
no code implementations • 6 Jul 2020 • Abhimanyu Susobhanan, Yogesh Maan, Bhal Chandra Joshi, T. Prabu, Shantanu Desai, Yashwant Gupta, A. Gopakumar, Neelam Dhanda Batra, Arpita Choudhary, Mayuresh P. Surnis, Lankeswar Dey, Jaikhomba Singha, K. Nobleson, Manjari Bagchi, Avishek Basu, Suryarao Bethapudi, Kishalay De, Raghav Girgaonkar, M. A. Krishnakumar, P. K. Manoharan, Arun Kumar Naidu, Dhruv Pathak, Sai Chaitanya Susarla
We introduce pinta, a pipeline for reducing the upgraded Giant Metre-wave Radio Telescope (uGMRT) raw pulsar timing data, developed for the Indian Pulsar Timing Array experiment.
Instrumentation and Methods for Astrophysics High Energy Astrophysical Phenomena
1 code implementation • 21 Dec 2019 • Anna Y. Q. Ho, Alessandra Corsi, S. Bradley Cenko, Francesco Taddia, S. R. Kulkarni, Scott Adams, Kishalay De, Richard Dekany, Dmitry D. Frederiks, Christoffer Fremling, V. Zach Golkhou, Thomas Kupfer, Russ R. Laher, Ashish Mahabal, Frank J. Masci, Adam A. Miller, James D. Neill, Daniel Reiley, Reed Riddle, Anna Ridnaia, Ben Rusholme, Yashvi Sharma, Jesper Sollerman, Maayane T. Soumagnac, Dmitry S. Svinkin, David L. Shupe
We present ZTF18aaqjovh (SN 2018bvw), a high-velocity ("broad-lined") stripped-envelope (Type Ic) supernova (Ic-BL SN) discovered in the Zwicky Transient Facility one-day cadence survey.
High Energy Astrophysical Phenomena