154 citations · 630 across the 31 of their papers we have counts for
8 papers · 1 filter
No X-Rays or Radio from the Nearest Black Holes and Implications for Future Searches
Antonio C. Rodriguez, Yvette Cendes, Kareem El-Badry +1
Astrometry from the Gaia mission was recently used to discover the two nearest known stellar-mass black holes (BHs), Gaia BH1 and Gaia BH2. Both systems contain …
JWST Observations of the Extraordinary GRB 221009A Reveal an Ordinary Supernova Without Signs of -Process Enrichment in a Low-Metallicity Galaxy
Peter K. Blanchard, V. Ashley Villar, Ryan Chornock +18
Identifying the astrophysical sites of the -process, one of the primary mechanisms by which heavy elements are formed, is a key goal of modern astrophysics. The discovery of the…
Ubiquitous Late Radio Emission from Tidal Disruption Events
Yvette Cendes, Edo Berger, Kate D. Alexander +9
We present radio observations of 23 optically discovered tidal disruption events (TDEs) on timescales of 500-3200 days post discovery. We detect nine new TDEs that did not have det…
Millimeter Observations of the Type II SN2023ixf: Constraints on the Proximate Circumstellar Medium
Edo Berger, Garrett K. Keating, Raffaella Margutti +10
We present 1.3 mm (230 GHz) observations of the recent and nearby Type II supernova, SN2023ixf, obtained with the Submillimeter Array (SMA) at 2.6-18.6 days after explosion. The ob…
Multiple Peaks and a Long Precursor in the Type IIn Supernova 2021qqp: An Energetic Explosion in a Complex Circumstellar Environment
Daichi Hiramatsu, Tatsuya Matsumoto, Edo Berger +14
We present optical photometry and spectroscopy of the Type IIn supernova (SN) 2021qqp. Its unusual light curve is marked by a long precursor for days, a rapid increase…
A radio-emitting outflow produced by the tidal disruption event AT2020vwl
A. J. Goodwin, K. D. Alexander, J. C. A. Miller-Jones +12
A tidal disruption event (TDE) occurs when a star is destroyed by a supermassive black hole. Broadband radio spectral observations of TDEs trace the emission from any outflows or j…
A red giant orbiting a black hole
Kareem El-Badry, Hans-Walter Rix, Yvette Cendes +18
We report spectroscopic and photometric follow-up of a dormant black hole (BH) candidate from Gaia DR3. The system, which we call Gaia BH2, contains a red giant a…
The Radio to GeV Afterglow of GRB 221009A
Tanmoy Laskar, Kate D. Alexander, Raffaella Margutti +27
GRB 221009A () is one of the closest known long -ray bursts (GRBs). Its extreme brightness across all electromagnetic wavelengths provides an unprecedented opportunity…