888 citations · 3.1k across the 31 of their papers we have counts for
31 papers
SN2017ckj: A linearly declining Type IIb supernova with a relatively massive hydrogen envelope
L. -H. Li, S. Benetti, Y. -Z. Cai +26
We present optical observations of the Type IIb supernova (SN) 2017ckj, covering approximately 180 days after the explosion. Its early-time multi-band light curves display no clear…
The Palomar Transient Factory Core-Collapse Supernova Host-Galaxy Sample. I. Host-Galaxy Distribution Functions and Environment-Dependence of CCSNe
Steve Schulze, Ofer Yaron, Jesper Sollerman +51
Several thousand core-collapse supernovae (CCSNe) of different flavors have been discovered so far. However, identifying their progenitors has remained an outstanding open question…
Extreme variability in an active galactic nucleus: Gaia16aax
G. Cannizzaro, M. Fraser, P. G. Jonker +12
We present the results of a multi-wavelength follow up campaign for the luminous nuclear transient Gaia16aax, which was first identified in January 2016. The transient is spatially…
SN 2016gsd: An unusually luminous and linear type II supernova with high velocities
T. M. Reynolds, M. Fraser, S. Mattila +27
We present observations of the unusually luminous Type II supernova (SN) 2016gsd. With a peak absolute magnitude of V = 19.95 0.08, this object is one of the brightest Typ…
Optical follow-up of the tidal disruption event iPTF16fnl: new insights from X-shooter observations
F. Onori, G. Cannizzaro, P. G. Jonker +11
We present the results from Nordic Optical Telescope and X-shooter follow-up campaigns of the tidal disruption event (TDE) iPTF16fnl, covering the first 100 days after the tr…
The long-lived Type IIn SN 2015da: Infrared echoes and strong interaction within an extended massive shell
L. Tartaglia, A. Pastorello, J. Sollerman +41
In this paper we report the results of the first four years of spectroscopic and photometric monitoring of the Type IIn supernova SN 2015da (also known as PSN J13522411+39412…
SN 2016coi (ASASSN-16fp): an energetic H-stripped core-collapse supernova from a massive stellar progenitor with large mass loss
G. Terreran, R. Margutti, D. Bersier +25
We present comprehensive observations and analysis of the energetic H-stripped SN 2016coi (a.k.a. ASASSN-16fp), spanning the -ray through optical and radio wavelengths, acquired…
On the Ca-strong 1991bg-like type Ia supernova 2016hnk: evidence for a Chandrasekhar-mass explosion
Lluís Galbany, Chris Ashall, Peter Hoeflich +46
We present a comprehensive dataset of optical and near-infrared photometry and spectroscopy of type~Ia supernova (SN) 2016hnk, combined with integral field spectroscopy (IFS) of it…
Investigating the properties of stripped-envelope supernovae, what are the implications for their progenitors?
S. J. Prentice, C. Ashall, P. A. James +41
We present observations and analysis of 18 stripped-envelope supernovae observed during 2013 -- 2018. This sample consists of 5 H/He-rich SNe, 6 H-poor/He-rich SNe, 3 narrow lined…
Unravelling the infrared transient VVV-WIT-06: the case for an origin in a classical nova
Dipankar P. K. Banerjee, Eric Y. Hsiao, Tiara Diamond +6
The enigmatic near-infrared transient VVV-WIT-06 underwent a large amplitude eruption of unclear origin in July 2013. Based on its lightcurve properties and late-time post-outburst…
Authenticating the Presence of a Relativistic Massive Black Hole Binary in OJ 287 Using its General Relativity Centenary Flare: Improved Orbital Parameters
Lankeswar Dey, M. J. Valtonen, A. Gopakumar +5
Results from regular monitoring of relativistic compact binaries like PSR 1913+16 are consistent with the dominant (quadrupole) order emission of gravitational waves (GWs). We show…
AT 2017be - a new member of the class of Intermediate-Luminosity Red Transients
Y-Z. Cai, A. Pastorello, M. Fraser +20
We report the results of our spectrophotometric monitoring campaign for AT~2017be in NGC~2537. Its lightcurve reveals a fast rise to an optical maximum, followed by a plateau lasti…
A dust-enshrouded tidal disruption event with a resolved radio jet in a galaxy merger
S. Mattila, M. Pérez-Torres, A. Efstathiou +33
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 transien…
A population of highly energetic transient events in the centres of active galaxies
E. Kankare, R. Kotak, S. Mattila +25
Recent all-sky surveys have led to the discovery of new types of transients. These include stars disrupted by the central supermassive black hole, and supernovae that are 10-100 ti…
The early detection and follow-up of the highly obscured Type II supernova 2016ija/DLT16am
L. Tartaglia, D. J. Sand, S. Valenti +45
We present our analysis of the Type II supernova DLT16am (SN~2016ija). The object was discovered during the ongoing (DLT40) one day cadence supernova search a…
A kilonova as the electromagnetic counterpart to a gravitational-wave source
S. J. Smartt, T. -W. Chen, A. Jerkstrand +118
Gravitational waves were discovered with the detection of binary black hole mergers and they should also be detectable from lower mass neutron star mergers. These are predicted to…
Stochastic modeling of multiwavelength variability of the classical BL Lac object OJ 287 on timescales ranging from decades to hours
A. Goyal, L. Stawarz, S. Zola +109
We present the results of our power spectral density analysis for the BL Lac object OJ\,287, utilizing the {\it Fermi}-LAT survey at high-energy -rays, {\it Swift}-XRT in X-rays…
Supernovae 2016bdu and 2005gl, and their link with SN 2009ip-like transients: another piece of the puzzle
A. Pastorello, C. S. Kochanek, M. Fraser +52
Supernova (SN) 2016bdu is an unusual transient resembling SN 2009ip. SN 2009ip-like events are characterized by a long-lasting phase of erratic variability which ends with two lumi…
Gaia16apd -- a link between fast-and slowly-declining type I superluminous supernovae
T. Kangas, N. Blagorodnova, S. Mattila +18
We present ultraviolet, optical and infrared photometry and optical spectroscopy of the type Ic superluminous supernova (SLSN) Gaia16apd (= SN 2016eay), covering its evolution from…
The Superluminous Transient ASASSN-15lh as a Tidal Disruption Event from a Kerr Black Hole
G. Leloudas, M. Fraser, N. C. Stone +47
When a star passes within the tidal radius of a supermassive black hole, it will be torn apart. For a star with the mass of the Sun () and a non-spinning black hole with a…
The Eruption of the Candidate Young Star ASASSN-15qi
Gregory J. Herczeg, Subo Dong, Benjamin J. Shappee +27
Outbursts on young stars are usually interpreted as accretion bursts caused by instabilities in the disk or the star-disk connection. However, some protostellar outbursts may not f…
Common Envelope ejection for a Luminous Red Nova in M101
N. Blagorodnova, R. Kotak, J. Polshaw +30
We present the results of optical, near-infrared, and mid-infrared observations of M101 OT2015-1 (PSN J14021678+5426205), a luminous red transient in the Pinwheel galaxy (M101), sp…
Dead or Alive? Long-term evolution of SN 2015bh (SNhunt275)
N. Elias-Rosa, A. Pastorello, S. Benetti +37
Supernova (SN) 2015bh (or SNhunt275) was discovered in NGC 2770 on 2015 February with an absolute magnitude of Mr ~ -13.4 mag, and was initially classified as a SN impostor. Here w…
A search for an optical counterpart to the gravitational wave event GW151226
S. J. Smartt, K. C. Chambers, K. W. Smith +37
We present a search for an electromagnetic counterpart of the gravitational wave source GW151226. Using the Pan-STARRS1 telescope we mapped out 290 square degrees in the optical i_…