Jacobson-Galan, Wynn V. and Margutti, Raffaella and Kilpatrick, Charles D. and Hiramatsu, Daichi and Perets, Hagai and Khatami, David and Foley, Ryan J. and Raymond, John and Yoon, Sung-Chul and Bobrick, Alexey and Zenati, Yossef and Galbany, Lluis and Andrews, Jennifer and Brown, Peter J. and Cartier, Regis and Coppejans, Deanne L. and Dimitriadis, Georgios and Dobson, Matthew and Hajela, Aprajita and Howell, D. Andrew and Kuncarayakti, Hanindyo and Milisavljevic, Danny and Rahman, Mohammed and Rojas-Bravo, Cesar and Sand, David J. and Shepherd, Joel and Smartt, Stephen J. and Stacey, Holland and Stroh, Michael and Swift, Jonathan J. and Terreran, Giacomo and Vinko, Jozsef and Wang, Xiaofeng and Anderson, Joseph P. and Baron, Edward A. and Berger, Edo and Blanchard, Peter K. and Burke, Jamison and Coulter, David A. and DeMarchi, Lindsay and DerKacy, James M. and Fremling, Christoffer and Gomez, Sebastian and Gromadzki, Mariusz and Hosseinzadeh, Griffin and Kasen, Daniel and Kriskovics, Levente and McCully, Curtis and Muller-Bravo, Tomas E. and Nicholl, Matt and Ordasi, Andras and Pellegrino, Craig and Piro, Anthony L. and Pal, Andras and Ren, Juanjuan and Rest, Armin and Rich, R. Michael and Sai, Hanna and Sarneczky, Krisztian and Shen, Ken J. and Short, Philip and Siebert, Matthew R. and Stauffer, Candice and Szakats, Robert and Zhang, Xinhan and Zhang, Jujia and Zhang, Kaicheng (2020) SN 2019ehk: A Double-peaked Ca-rich Transient with Luminous X-Ray Emission and Shock-ionized Spectral Features. The Astrophysical Journal, 898 (2): 166. ISSN 0004-637X
Full text not available from this repository.Abstract
We present panchromatic observations and modeling of the Calcium-rich supernova (SN) 2019ehk in the starforming galaxy M100 (d≃16.2 Mpc) starting 10 hr after explosion and continuing for∼300 days. SN 2019ehk shows a double-peaked optical light curve peaking at tQ=Q3 and 15 days. The first peak is coincident with luminous, rapidly decaying Swift-XRTVdiscovered X-ray emission (Lx≃10 erg s- 41 -1at 3 days Lx∞t.3)