51 citations · 372 across the 23 of their papers we have counts for
24 papers
Cassiopeia A's Reverse Shock and its Effects on the Expanding SN Ejecta
Robert A. Fesen, Dan Milisavljevic, Daniel Patnaude +4
Using optical and near-infrared images of the Cassiopeia A (Cas A) supernova remnant covering the time period 1951 to 2022, together with optical spectra of selected filaments, we…
Late-Time Optical and X-ray Emission Evolution of the Oxygen-Rich SN 1996cr
Daniel Patnaude, Kathryn Weil, Robert Fesen +2
When the ejecta of supernovae interact with the progenitor star's circumstellar environment, a strong shock is driven back into the ejecta, causing the material to become bright op…
Shockingly Bright Warm Carbon Monoxide Molecular Features in the Supernova Remnant Cassiopeia A Revealed by JWST
J. Rho, S. -H. Park, R. Arendt +36
We present JWST NIRCam (F356W and F444W filters) and MIRI (F770W) images and NIRSpec- IFU spectroscopy of the young supernova remnant Cassiopeia A (Cas A). We obtained the data as…
A JWST Survey of the Supernova Remnant Cassiopeia A
Dan Milisavljevic, Tea Temim, Ilse De Looze +43
We present initial results from a JWST survey of the youngest Galactic core-collapse supernova remnant Cassiopeia A (Cas A), made up of NIRCam and MIRI imaging mosaics that map emi…
Red Supergiant Candidates for Multimessenger Monitoring of the Next Galactic Supernova
Sarah Healy, Shunsaku Horiuchi, Marta Colomer Molla +5
We compile a catalog of 578 highly probable and 62 likely red supergiants (RSGs) of the Milky Way, which represents the largest list of Galactic RSG candidates designed for continu…
HST Proper Motion Measurements of Supernova Remnant N132D: Center of Expansion and Age
John Banovetz, Dan Milisavljevic, Niharika Sravan +8
We present proper motion measurements of oxygen-rich ejecta of the LMC supernova remnant N132D using two epochs of Hubble Space Telescope Advanced Camera for Surveys data spanning…
Inferencing Progenitor and Explosion Properties of Evolving Core-collapse Supernovae from Zwicky Transient Facility Light Curves
Bhagya M. Subrayan, Danny Milisavljevic, Takashi J. Moriya +9
We analyze a sample of 45 Type II supernovae from the Zwicky Transient Facility (ZTF) public survey using a grid of hydrodynamical models in order to assess whether theoretically-d…
The Candidate Progenitor Companion Star of the Type Ib/c SN 2013ge
Ori D. Fox, Schuyler D. Van Dyk, Benjamin F. Williams +17
This Letter presents the detection of a source at the position of the Type Ib/c supernova (SN) 2013ge more than four years after the radioactive component is expected to have faded…
Supernova host galaxy association and photometric classification of over 10,000 light curves from the Zwicky Transient Facility
Braden Garretson, Dan Milisavljevic, Jack Reynolds +4
Here we present a catalog of 12,993 photometrically-classified supernova-like light curves from the Zwicky Transient Facility, along with candidate host galaxy associations. By tra…
YY Hya and its interstellar environment
Stefan Kimeswenger, John R. Thorstensen, Robert A. Fesen +7
During a search for previously unknown Galactic emission nebulae, we discovered a faint 36' diameter Halpha emission nebula centered around the periodic variable YY Hya. Although t…
An Updated Distance to the Cygnus Loop based on Gaia Early DR3
Robert A. Fesen, Kathryn E. Weil, Ignacio Cisneros +2
We present a revised distance to the Cygnus Loop supernova remnant of pc based on Gaia Early Data Release 3 parallax measurements (EDR3) for several stars previously fou…
Far UV and Optical Emissions from Three Very Large Supernova Remnants Located at Unusually High Galactic Latitudes
Robert A. Fesen, Marcel Drechsler, Kathryn E. Weil +9
Galactic supernova remnants (SNRs) with angular dimensions greater than a few degrees are relatively rare, as are remnants located more than ten degrees off the Galactic plane. Her…
The Center of Expansion and Age of the Oxygen-rich Supernova Remnant 1E 0102.2-7219
John Banovetz, Dan Milisavljevic, Niharika Sravan +8
We present new proper motion measurements of optically emitting oxygen-rich knots of supernova remnant 1E 0102.2-7219 (E0102), which are used to estimate the remnant's center of ex…
Collaborative Experience between Scientific Software Projects using Agile Scrum Development
A. L. Baxter, S. Y. BenZvi, W. Bonivento +49
Developing sustainable software for the scientific community requires expertise in software engineering and domain science. This can be challenging due to the unique needs of scien…
G107.0+9.0: A New Large Optically Bright, Radio and X-Ray Faint Galactic Supernova Remnant in Cepheus
Robert A. Fesen, Kathryn E. Weil, John C. Raymond +7
Wide-field H-alpha images of the Galactic plane have revealed a new supernova remnant (SNR) nearly three degrees in diameter centred at l = 107.0, b = +9.0. Deep and higher resolut…
The Nature of the Young Supernova Remnant S8 in the Dwarf Galaxy IC 1613
Robert A. Fesen, Kathryn E. Weil
We present sub-arcsecond optical images and low- to moderate-resolution spectra of the compact, X-ray and optically bright supernova remnant known as S8 in the nearby dwarf galaxy…
Detection of Late-Time Circumstellar Interaction of SN 2017eaw in NGC 6946
Kathryn E. Weil, Robert A. Fesen, Daniel J. Patnaude +1
SN 2017eaw, the tenth supernova observed in NGC 6946, was a normal Type II-P supernova with an estimated 11 - 13 Msun supergiant progenitor. Here we present nebular phase spectra o…
Detection of the Red Supergiant Wind from the Progenitor of Cassiopeia A
Kathryn E. Weil, Robert A. Fesen, Daniel J. Patnaude +4
Cassiopeia A (Cas A) is one of the best studied young Galactic supernova remnants. While providing a rare opportunity to study in detail the remnant of a Type IIb supernova, questi…
Detection of Late-Time Optical Emission from SN 1941C in NGC 4136
Robert Fesen, Kathryn Weil
We report the detection of broad, high-velocity oxygen emission lines from the site of SN 1941C nearly eight decades after outburst, making it the oldest optically detected core-co…
The Cygnus Loop's Distance, Properties, and Environment Driven Morphology
Robert A. Fesen, Kathryn E. Weil, Ignacio A. Cisneros +2
The Cygnus Loop is among the brightest and best studied evolved Galactic supernova remnants. However, its distance has remained uncertain thus undermining quantitative understandin…
An Optical Study of Two VY Sculptoris-Type Cataclysmic Binary Stars: V704 And and RX J2338+431
Kathryn E. Weil, John R. Thorstensen, Frank Haberl
We report observations of the known cataclysmic variable star (CV) V704 And, and also confirm that the optical counterpart of the ROSAT Galactic Plane Survey source RX J2338+431 is…
New or Improved Orbital Periods of Cataclysmic Binaries
John R. Thorstensen, Frederick A. Ringwald, Cynthia J. Taylor +5
We present a table of 58 cataclysmic binary orbital periods determined using data from MDM Observatory. Most are heretofore unpublished; some are refinements of previously publishe…
A Trip to the Cataclysmic Binary Zoo: Detailed Follow-Up of 35 Recently-Discovered Systems
John R. Thorstensen, Erek H. Alper, Kathryn E. Weil
We report follow-up studies of 35 recently-discovered cataclysmic variables (CVs), 32 of which were found in large, automated synoptic sky surveys. The objects were selected for ob…
Optical and UV Spectra of the Remnant of SN 1885 (S And) in M31
Robert A. Fesen, Kathryn E. Weil, Peter A. Hoeflich +1
We present optical and ultraviolet spectra of SN 1885 (S And), visible in absorption against the bulge of the Andromeda galaxy (M31), using the Hubble Space Telescope's STIS spectr…