Search Results - "Chomiuk, Laura"
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Supernova remnants in the Local Group – I. A model for the radio luminosity function and visibility times of supernova remnants
Published in Monthly notices of the Royal Astronomical Society (11-01-2017)“…Abstract Supernova remnants (SNRs) in Local Group galaxies offer unique insights into the origin of different types of supernovae (SNe). In order to take full…”
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2
High-energy Neutrinos and Gamma Rays from Nonrelativistic Shock-powered Transients
Published in The Astrophysical journal (01-11-2020)“…Abstract Shock interaction has been argued to play a role in powering a range of optical transients, including supernovae, classical novae, stellar mergers,…”
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3
Improved Dynamical Constraints on the Masses of the Central Black Holes in Nearby Low-mass Early-type Galactic Nuclei and the First Black Hole Determination for NGC 205
Published in The Astrophysical journal (10-02-2019)“…We improve the dynamical black hole (BH) mass estimates in three nearby low-mass early-type galaxies: NGC 205, NGC 5102, and NGC 5206. We use new Hubble Space…”
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4
Three Hypervelocity White Dwarfs in Gaia DR2: Evidence for Dynamically Driven Double-degenerate Double-detonation Type Ia Supernovae
Published in The Astrophysical journal (20-09-2018)“…Double detonations in double white dwarf (WD) binaries undergoing unstable mass transfer have emerged in recent years as one of the most promising Type Ia…”
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5
Optical Spectroscopy and Demographics of Redback Millisecond Pulsar Binaries
Published in The Astrophysical journal (10-02-2019)“…We present the first optical spectroscopy of five confirmed (or strong candidate) redback millisecond pulsar binaries, obtaining complete radial velocity…”
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6
Evidence for Multiple Shocks from the γ-Ray Emission of RS Ophiuchi
Published in The Astrophysical journal (01-04-2023)“…Abstract In 2021 August, the Fermi Large Area Telescope, H.E.S.S., and MAGIC detected GeV and TeV γ -ray emission from an outburst of recurrent nova RS…”
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The Ultracompact Nature of the Black Hole Candidate X-Ray Binary 47 Tuc X9
Published in Monthly notices of the Royal Astronomical Society (11-05-2017)“…47 Tuc X9 is a low-mass X-ray binary (LMXB) in the globular cluster 47 Tucanae, and was previously thought to be a cataclysmic variable. However, Miller-Jones…”
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Two stellar-mass black holes in the globular cluster M22
Published in Nature (London) (04-10-2012)“…Two flat-spectrum radio sources in the Milky Way globular cluster M22 are thought to be accreting stellar-mass black holes; the identification of two black…”
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9
Discovery and Early Evolution of ASASSN-19bt, the First TDE Detected by TESS
Published in The Astrophysical journal (01-10-2019)“…We present the discovery and early evolution of ASASSN-19bt, a tidal disruption event (TDE) discovered by the All-Sky Automated Survey for Supernovae (ASAS-SN)…”
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Evidence of Gradients of Density and Magnetic Field in the Remnant of Tycho’s Supernova
Published in The Astrophysical journal (01-09-2024)“…Abstract By using surface brightness maps of Tycho’s supernova remnant (SNR) in radio and X-rays, along with the properties of thermal and synchrotron…”
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11
The Black Hole in the Most Massive Ultracompact Dwarf Galaxy M59-UCD3
Published in The Astrophysical journal (10-05-2018)“…We examine the internal properties of the most massive ultracompact dwarf galaxy (UCD), M59-UCD3, by combining adaptive-optics-assisted near-IR integral field…”
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12
A Multiwavelength View of the Neutron Star Binary 1FGL J1417.7-4402: A Progenitor to Canonical Millisecond Pulsars
Published in The Astrophysical journal (20-10-2018)“…The Fermi γ-ray source 1FGL J1417.7-4407 (J1417) is a compact X-ray binary with a neutron star primary and a red giant companion in a ∼5.4 days orbit. This…”
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13
A NEW MODEL FOR THE RADIO EMISSION FROM SN 1994I AND AN ASSOCIATED SEARCH FOR RADIO TRANSIENTS IN M51
Published in The Astrophysical journal (10-06-2015)“…ABSTRACT We revisit the exquisite archival radio data for the Type Ic supernova SN 1994I and present a revised model for the supernova (SN) radio emission and…”
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14
Ultradeep ATCA Imaging of 47 Tucanae Reveals a Central Compact Radio Source
Published in The Astrophysical journal (01-01-2024)“…Abstract We present the results of an ultradeep radio continuum survey, containing ∼480 hr of observations, of the Galactic globular cluster 47 Tucanae with…”
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15
Tracking the Enigmatic Globular Cluster Ultracompact X-Ray Binary X1850–087: Extreme Radio Variability in the Hard State
Published in The Astrophysical journal (01-04-2023)“…Abstract The conditions under which accreting neutron stars launch radio-emitting jets and/or outflows are still poorly understood. The ultracompact X-ray…”
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16
A Radio Emission Analysis of Classical Nova V351 Pup (1991)
Published in The Astrophysical journal (10-05-2017)“…Previously, Nova Puppis 1991 (V351 Pup) was measured to host one of the most massive ejections claimed in the literature. Multi-frequency radio detections from…”
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DISTANCE AND REDDENING OF THE ENIGMATIC GAMMA-RAY-DETECTED NOVA V1324 SCO
Published in The Astrophysical journal (20-08-2015)“…ABSTRACT It has recently been discovered that some, if not all, classical novae emit GeV gamma-rays during outburst. Despite using an unreliable method to…”
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18
GS 2000+25: The Least Luminous Black Hole X-Ray Binary
Published in The Astrophysical journal (20-01-2020)“…Little is known about the properties of the accretion flows and jets of the lowest-luminosity quiescent black holes. We report new, strictly simultaneous radio…”
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Shock-powered radio emission from V5589 Sagittarii (Nova Sgr 2012 #1)
Published in Monthly notices of the Royal Astronomical Society (11-08-2016)“…Since the Fermi discovery of γ-rays from novae, one of the biggest questions in the field has been how novae generate such high-energy emission. Shocks must be…”
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Observational Constraints on Late-time Radio Rebrightening of GRB/Supernovae
Published in The Astrophysical journal (10-02-2019)“…We present a search for late-time rebrightening of radio emission from three supernovae (SNe) with associated gamma-ray bursts (GRBs). It has been previously…”
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