74 citations · 374 across the 19 of their papers we have counts for
22 papers
What determines the -ray luminosities of classical novae?
Peter Craig, Elias Aydi, Laura Chomiuk +25
Classical novae in the Milky Way have now been well-established as high-energy GeV -ray sources. In novae with main-sequence companions, this emission is believed to result from…
Revisiting the Classics: On the Statistics of Dust Formation in Novae
Atticus Chong, Elias Aydi, Peter Craig +6
While nova eruptions produce some of the most common and dramatic dust formation episodes among astrophysical transients, the demographics of dust-forming novae remain poorly under…
Revisiting the Classics: On the Optical Colours of Novae as Standard Crayons
Peter Craig, Elias Aydi, Laura Chomiuk +9
We present a systematic study of the colours of novae over the course of their eruptions. Where possible, interstellar reddening was measured using the equivalent widths of…
Catching a nova X-ray/UV flash in the visible? Early spectroscopy of the extremely slow Nova Velorum 2022 (Gaia22alz)
E. Aydi, L. Chomiuk, J. Mikołajewska +22
We present early spectral observations of the very slow Galactic nova Gaia22alz, over its gradual rise to peak brightness that lasted 180 days. During the first 50 days, when the n…
The multi-wavelength view of shocks in the fastest nova V1674 Her
K. V. Sokolovsky, T. J. Johnson, S. Buson +41
Classical novae are shock-powered multi-wavelength transients triggered by a thermonuclear runaway on an accreting white dwarf. V1674 Her is the fastest nova ever recorded (time to…
The Galactic Nova Rate: Estimates from the ASAS-SN and Gaia Surveys
A. Kawash, L. Chomiuk, J. Strader +13
We present the first estimate of the Galactic nova rate based on optical transient surveys covering the entire sky. Using data from the All-Sky Automated Survey for Supernovae (ASA…
4FGL J1120.0-2204: A Unique Gamma-ray Bright Neutron Star Binary with an Extremely Low Mass Proto-White Dwarf
Samuel J. Swihart, Jay Strader, Elias Aydi +5
We have discovered a new X-ray emitting compact binary that is the likely counterpart to the unassociated Fermi-LAT GeV -ray source 4FGL J1120.0-2204, the second brightest Fermi…
Timing observations of three Galactic millisecond pulsars
D. R. Lorimer, A. M. Kawash, P. C. C. Freire +16
We report observed and derived timing parameters for three millisecond pulsars (MSPs) from observations collected with the Parkes 64-m telescope, Murriyang. The pulsars were found…
The 2019 outburst of the 2005 classical nova V1047 Cen: a record breaking dwarf nova outburst or a new phenomenon?
E. Aydi, K. V. Sokolovsky, J. S. Bright +28
We present a detailed study of the 2019 outburst of the cataclysmic variable V1047~Cen, which hosted a classical nova eruption in 2005. The peculiar outburst occurred 14 years afte…
The first nova eruption in a novalike variable: YZ Ret as seen in X-rays and gamma-rays
Kirill V. Sokolovsky, Kwan-Lok Li, Raimundo Lopes de Oliveira +16
Peaking at 3.7 mag on 2020 July 11, YZ Ret was the second-brightest nova of the decade. The nova's moderate proximity (2.7 kpc from Gaia) provided an opportunity to explore its mul…
Classical Novae at Radio Wavelengths
Laura Chomiuk, Justin D. Linford, Elias Aydi +20
We present radio observations (1--40 GHz) for 36 classical novae, representing data from over five decades compiled from the literature, telescope archives, and our own programs. O…
Shocks and dust formation in nova V809 Cep
Aliya-Nur Babul, Jennifer L. Sokoloski, Laura Chomiuk +5
The discovery that many classical novae produce detectable GeV -ray emission has raised the question of the role of shocks in nova eruptions. Here we use radio observations of n…
Multiwavelength evidence for a new flare-mode transitional millisecond pulsar
Jay Strader, Samuel J. Swihart, Ryan Urquhart +7
We report the discovery of a new low-mass X-ray binary near the center of the unassociated Fermi GeV gamma-ray source 4FGL J0540.0-7552. The source shows the persistent presence of…
The Gravity Collective: A Search for the Electromagnetic Counterpart to the Neutron Star-Black Hole Merger GW190814
Charles D. Kilpatrick, David A. Coulter, Iair Arcavi +79
We present optical follow-up imaging obtained with the Katzman Automatic Imaging Telescope, Las Cumbres Observatory Global Telescope Network, Nickel Telescope, Swope Telescope, and…
Galactic Extinction: How Many Novae Does it Hide and How Does it Affect the Galactic Nova Rate?
A. Kawash, L. Chomiuk, J. A. Rodriguez +11
There is a longstanding discrepancy between the observed Galactic classical nova rate of yr and the predicted rate from Galactic models of --50 yr.…
Early spectral evolution of classical novae: consistent evidence for multiple distinct outflows
E. Aydi, L. Chomiuk, L. Izzo +18
The physical mechanism driving mass ejection during a nova eruption is still poorly understood. Possibilities include ejection in a single ballistic event, a common envelope intera…
A New Candidate Transitional Millisecond Pulsar in the Sub-luminous Disk State: 4FGL J0407.7--5702
Jessie M. Miller, Samuel J. Swihart, Jay Strader +7
We report the discovery of a variable optical and X-ray source within the error ellipse of the previously unassociated Fermi Large Area Telescope -ray source 4FGL J0407.7--5702.…
X-ray Spectroscopy of the gamma-ray Brightest Nova V906 Car (ASASSN-18fv)
Kirill V. Sokolovsky, Koji Mukai, Laura Chomiuk +15
Shocks in gamma-ray emitting classical novae are expected to produce bright thermal and non-thermal X-rays. We test this prediction with simultaneous NuSTAR and Fermi/LAT observati…
Direct evidence for shock-powered optical emission in a nova
Elias Aydi, Kirill V. Sokolovsky, Laura Chomiuk +39
Classical novae are thermonuclear explosions that occur on the surfaces of white dwarf stars in interacting binary systems (Bode & Evans 2008). It has long been thought that the lu…
A New Likely Redback Millisecond Pulsar Binary with a Massive Neutron Star: 4FGL J2333.1--5527
Samuel J. Swihart, Jay Strader, Ryan Urquhart +7
We present the discovery of a likely new redback millisecond pulsar binary associated with the \emph{Fermi} -ray source 4FGL J2333.1--5527. Using optical photometric and spectro…
Astro2020 Science White Paper: A Shocking Shift in Paradigm for Classical Novae
Laura Chomiuk, Elias Aydi, Aliya-Nur Babul +10
The discovery of GeV gamma-rays from classical novae has led to a reassessment of these garden-variety explosions, and highlighted their importance for understanding radiative shoc…
The Green Bank Northern Celestial Cap Pulsar Survey II: The Discovery and Timing of Ten Pulsars
A. M. Kawash, M. A. McLaughlin, D. L. Kaplan +41
We present timing solutions for ten pulsars discovered in 350 MHz searches with the Green Bank Telescope. Nine of these were discovered in the Green Bank Northern Celestial Cap sur…