Pulsars, transients and relativistic astrophysics

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SN 2017ens: The Metamorphosis of a Luminous Broad-lined Type Ic Supernova into an SN IIn

(2018)

Authors:

T-W Chen, C Inserra, M Fraser, TJ Moriya, P Schady, T Schweyer, AV Filippenko, DA Perley, AJ Ruiter, I Seitenzahl, J Sollerman, F Taddia, JP Anderson, RJ Foley, A Jerkstrand, C-C Ngeow, Y-C Pan, A Pastorello, S Points, SJ Smartt, KW Smith, S Taubenberger, P Wiseman, DR Young, S Benetti, M Berton, F Bufano, P Clark, M Della Valle, L Galbany, A Gal-Yam, M Gromadzki, CP Gutiérrez, A Heinze, E Kankare, CD Kilpatrick, H Kuncarayakti, G Leloudas, Z-Y Lin, K Maguire, P Mazzali, O McBrien, SJ Prentice, A Rau, A Rest, MR Siebert, B Stalder, JL Tonry, P-C Yu
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SPIRITS 16tn in NGC 3556: A Heavily Obscured and Low-luminosity Supernova at 8.8 Mpc

The Astrophysical Journal American Astronomical Society 863:1 (2018) 20

Authors:

Jacob E Jencson, Mansi M Kasliwal, Scott M Adams, Howard E Bond, Ryan M Lau, Joel Johansson, Assaf Horesh, Kunal P Mooley, Robert Fender, Kishalay De, Dónal O’Sullivan, Frank J Masci, Ann Marie Cody, Nadia Blagorodnova, Ori D Fox, Robert D Gehrz, Peter A Milne, Daniel A Perley, Nathan Smith, Schuyler D Van Dyk
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PS18kh: A New Tidal Disruption Event with a Non-Axisymmetric Accretion Disk

(2018)

Authors:

TW-S Holoien, ME Huber, BJ Shappee, M Eracleous, K Auchettl, JS Brown, MA Tucker, KC Chambers, CS Kochanek, KZ Stanek, A Rest, D Bersier, RS Post, G Aldering, KA Ponder, JD Simon, E Kankare, D Dong., G Hallinan, NA Reddy, RL Sanders, MW Topping, J Bulger, TB Lowe, EA Magnier, ASB Schultz, CZ Waters, M Willman, D Wright, DR Young, Subo Dong, JL Prieto, Todd A Thompson, L Denneau, H Flewelling, AN Heinze, SJ Smartt, KW Smith, B Stalder, JL Tonry, H Weiland
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Upper limits on the rapid cooling of the Central Compact Object in Cas A

(2018)

Authors:

B Posselt, GG Pavlov
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A dust-enshrouded tidal disruption event with a resolved radio jet in a galaxy merger.

Science (New York, N.Y.) 361:6401 (2018) 482-485

Authors:

S Mattila, M Pérez-Torres, A Efstathiou, P Mimica, M Fraser, E Kankare, A Alberdi, MÁ Aloy, T Heikkilä, PG Jonker, P Lundqvist, I Martí-Vidal, WPS Meikle, C Romero-Cañizales, SJ Smartt, S Tsygankov, E Varenius, A Alonso-Herrero, M Bondi, C Fransson, R Herrero-Illana, T Kangas, R Kotak, N Ramírez-Olivencia, P Väisänen, RJ Beswick, DL Clements, R Greimel, J Harmanen, J Kotilainen, K Nandra, T Reynolds, S Ryder, NA Walton, K Wiik, G Östlin

Abstract:

Tidal disruption events (TDEs) are transient flares produced when a star is ripped apart by the gravitational field of a supermassive black hole (SMBH). We have observed a transient source in the western nucleus of the merging galaxy pair Arp 299 that radiated >1.5 × 1052 erg at infrared and radio wavelengths but was not luminous at optical or x-ray wavelengths. We interpret this as a TDE with much of its emission reradiated at infrared wavelengths by dust. Efficient reprocessing by dense gas and dust may explain the difference between theoretical predictions and observed luminosities of TDEs. The radio observations resolve an expanding and decelerating jet, probing the jet formation and evolution around a SMBH.
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