output
19922026
most citedSSD: Single Shot MultiBox Detector

22k citations

Showing 2018 · astro-ph.SRShow all

24 papers · 2 filters

astro-ph.SR2018★ 34 cited

Detections and Constraints on White Dwarf Variability from Time-Series GALEX Observations

Dominick M. Rowan, Michael A. Tucker, Benjamin J. Shappee +1

We search for photometric variability in more than 23,000 known and candidate white dwarfs, the largest ultraviolet survey compiled for a single study of white dwarfs. We use gPhot…

astro-ph.SR2018★ 25 cited

Evidence for mass accretion driven by spiral shocks onto the white dwarf in SDSS J123813.73-033933.0

A. F. Pala, B. T. Gänsicke, T. R. Marsh +21

We present high-time-resolution photometry and phase-resolved spectroscopy of the short-period () cataclysmic variable SDSS J123813.73-033933.…

astro-ph.SR2018★ 85 cited

Photometric and Spectroscopic Properties of Type Ia Supernova 2018oh with Early Excess Emission from the 2 Observations

W. Li, X. Wang, J. Vinkó +160

Supernova (SN) 2018oh (ASASSN-18bt) is the first spectroscopically-confirmed type Ia supernova (SN Ia) observed in the field. The data revealed an excess emission…

astro-ph.SR2018★ 22 cited

Discovery of the first resolved triple white dwarf

M. Perpinyà-Vallès, A. Rebassa-Mansergas, B. T. Gänsicke +4

We report the discovery of J1953-1019, the first resolved triple white dwarf system. The triplet consists of an inner white dwarf binary and a wider companion. Using Gaia DR2 photo…

astro-ph.SR2018

Meter- to Millimeter Emission from Cool Stellar Systems: Latest Results, Synergies Across the Spectrum, and Outlook for the Next Decade

Jan Forbrich, Peter K. G. Williams, Emily Drabek-Maunder +12

Radio observations of cool stellar systems provide unique information on their magnetic fields, high-energy processes, and chemistry. Buoyed by powerful new instruments (e.g. ALMA,…

astro-ph.SR2018★ 361 cited

How to Constrain Your M dwarf II: the mass-luminosity-metallicity relation from 0.075 to 0.70

Andrew W. Mann, Trent Dupuy, Adam L. Kraus +11

The mass-luminosity relation for late-type stars has long been a critical tool for estimating stellar masses. However, there is growing need for both a higher-precision relation an…

astro-ph.SR2018★ 125 cited

The scatter of the M dwarf mass-radius relationship

S. G. Parsons, B. T. Gänsicke, T. R. Marsh +14

M dwarfs are prime targets in the hunt for habitable worlds around other stars. This is due to their abundance as well as their small radii and low masses and temperatures, which f…

astro-ph.SR2018★ 7 cited

Young and eccentric: the quadruple system HD 86588

Andrei Tokovinin, Hank Corbett, Octavi Fors +4

High-resolution spectroscopy and speckle interferometry reveal the young star HD 86588 as a quadruple system with a 3-tier hierarchy. The 0.3" resolved binary A,B with an estimated…

astro-ph.SR2018★ 62 cited

Stellar Surface Magneto-Convection as a Source of Astrophysical Noise II. Center-to-Limb Parameterisation of Absorption Line Profiles and Comparison to Observations

H. M. Cegla, C. A. Watson, S. Shelyag +6

Manifestations of stellar activity (such as star-spots, plage/faculae, and convective flows) are well known to induce spectroscopic signals often referred to as astrophysical noise…

astro-ph.SR2018★ 26 cited

TY Pup: a low-mass-ratio and deep contact binary as a progenitor candidate of luminous red novae

T. Sarotsakulchai, S. B. Qian, B. Soonthornthum +6

TY Pup is a well-known bright eclipsing binary in southern hemisphere with an orbital period of 0.8192 days. New light curves in bands were obtained with the 0.61-m…

astro-ph.SR2018★ 56 cited

A Refined Search for Pulsations in White Dwarf Companions to Millisecond Pulsars

Mukremin Kilic, J. J. Hermes, A. H. Corsico +7

We present optical high-speed photometry of three millisecond pulsars with low-mass () white dwarf companions, bringing the total number of such systems with follo…

astro-ph.SR2018★ 17 cited

Signatures of an eruptive phase before the explosion of the peculiar core-collapse SN 2013gc

Andrea Reguitti, Andrea Pastorello, Giuliano Pignata +12

We present photometric and spectroscopic analysis of the peculiar core-collapse SN 2013gc, spanning seven years of observations. The light curve shows an early maximum followed by…

astro-ph.SR2018★ 15 cited

The McDonald Observatory search for pulsating sdA stars: asteroseismic support for multiple populations

Keaton J. Bell, Ingrid Pelisoli, S. O. Kepler +8

Context. The nature of the recently identified "sdA" spectroscopic class of star is not well understood. The thousands of known sdAs have H-dominated spectra, spectroscopic surface…

astro-ph.SR2018★ 10 cited

Searching for new white dwarf pulsators for TESS observations at Konkoly Observatory

Zs. Bognár, Cs. Kalup, Á. Sódor +2

We present the results of our survey searching for new white dwarf pulsators for observations by the TESS space telescope. We collected photometric time-series data on 14 white dwa…

astro-ph.SR2018★ 23 cited

A 15.7-Minute AM CVn Binary Discovered in K2

M. J. Green, J. J. Hermes, T. R. Marsh +14

We present the discovery of SDSS J135154.46-064309.0, a short-period variable observed using 30-minute cadence photometry in K2 Campaign 6. Follow-up spectroscopy and high-speed ph…

astro-ph.SR2018★ 87 cited

A New Look at an Old Cluster: The Membership, Rotation, and Magnetic Activity of Low-Mass Stars in the 1.3-Gyr-Old Open Cluster NGC 752

Marcel Agüeros, Emily Bowsher, John Bochanski +8

The nearby open cluster NGC 752 presents a rare opportunity to study stellar properties at ages >1 Gyr. However, constructing a membership catalog for it is challenging; most surve…

astro-ph.SR2018★ 44 cited

Anatomy of the hyper-runaway star LP 40-365 with Gaia

R. Raddi, M. A. Hollands, B. T. Gaensicke +4

LP 40-365 (aka GD 492) is a nearby low-luminosity hyper-runaway star with an extremely unusual atmospheric composition, which has been proposed as the remnant of a white dwarf that…

astro-ph.SR2018★ 17 cited

RW Dor: A G-type shallow contact binary with new orbital period investigation

T. Sarotsakulchai, S. -B. Qian, B. Soonthornthum +9

New CCD photometric light curves of short period (P=0.285d) eclipsing binary RW Dor are presented. The observations performed with the PROMPT-8 robotic telescope at CTIO in Chile f…

astro-ph.SR2018★ 38 cited

Further insight on the hypervelocity white dwarf, LP 40-365 (GD 492): a nearby emissary from a single-degenerate Type Ia supernova

R. Raddi, M. A. Hollands, D. Koester +4

The recently discovered hypervelocity white dwarf LP 40-65 (aka GD 492) has been suggested as the outcome of the failed disruption of a white dwarf in a sub-luminous Type Ia supern…

astro-ph.SR2018★ 47 cited

Toward Understanding the B[e] Phenomenon. VII. AS 386, a single-lined binary with a candidate black hole component

S. A. Khokhlov, A. S. Miroshnichenko, S. V. Zharikov +24

We report the results of spectroscopic and photometric observations of the emission-line object AS 386. For the first time, we found that it exhibits the B[e] phenomenon and fits t…

astro-ph.SR2018★ 44 cited

The first sub-70 minute non-interacting WD-BD system: EPIC212235321

S. L. Casewell, I. P. Braker, S. G. Parsons +9

We present the discovery of the shortest-period, non-interacting, white dwarf-brown dwarf post-common-envelope binary known. The K2 light curve shows the system, EPIC 21223532 has…

astro-ph.SR2018★ 40 cited

High-Speed Photometry of Gaia14aae: An Eclipsing AM CVn That Challenges Formation Models

M. J. Green, T. R. Marsh, D. T. H. Steeghs +19

AM CVn-type systems are ultra-compact, hydrogen-deficient accreting binaries with degenerate or semi-degenerate donors. The evolutionary history of these systems can be explored by…

astro-ph.SR2018★ 38 cited

On Presolar Stardust Grains from CO Classical Novae

Christian Iliadis, Lori Downen, Jordi Jose +2

About 30% to 40% of classical novae produce dust 20-100 days after the outburst, but no presolar stardust grains from classical novae have been unambiguously identified yet. Althou…

astro-ph.SR2018★ 51 cited

Rapid Evolution of the Gaseous Exoplanetary Debris Around the White Dwarf Star HE 1349--2305

E. Dennihy, J. C. Clemens, B. H. Dunlap +3

Observations of heavy metal pollution in white dwarf stars indicate that metal-rich planetesimals are frequently scattered into star-grazing orbits, tidally disrupted, and accreted…