Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.6k papers
- University of California, BerkeleyUS2.5k papers
- The Ohio State UniversityUS2.3k papers
- University of ArizonaUS2.1k papers
- Lawrence Berkeley National LaboratoryUS2.1k papers
- SLAC National Accelerator LaboratoryUS2k papers
- University of California, IrvineUS2k papers
- Yale UniversityUS1.9k papers
- University of Wisconsin–MadisonUS1.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.9k papers
- McGill UniversityCA1.9k papers
- University of ChicagoUS1.9k papers
27 papers · 2 filters
Census of R Coronae Borealis stars I: Infrared light curves from Palomar Gattini IR
Viraj R. Karambelkar, Mansi M. Kasliwal, Patrick Tisserand +16
We are undertaking the first systematic infrared (IR) census of R Coronae Borealis (RCB) stars in the Milky Way, beginning with IR light curves from the Palomar Gattini IR (PGIR) s…
Three-body capture, ejection, and the demographics of bound objects in binary systems
Benjamin V. Lehmann, Olivia G. Ross, Ava Webber +1
We study the capture of light objects of arbitrary velocity by binary systems. Extending results for the capture of comets in the solar system, we develop a simple geometric charac…
NuSTAR Observation of Energy Release in Eleven Solar Microflares
Jessie Duncan, Lindsay Glesener, Brian W. Grefenstette +6
Solar flares are explosive releases of magnetic energy. Hard X-ray (HXR) flare emission originates from both hot (millions of Kelvin) plasma and nonthermal accelerated particles, g…
OGLE-2007-BLG-224L: Confirmation of Terrestrial Parallax
Yutong Shan, Jennifer C. Yee, Vanessa P. Bailey +4
We present limits on the lens flux of OGLE-2007-BLG-224 based on MagAO imaging taken seven years after the microlensing event. At the time of the observations, the lens should have…
Evolutionary Models for the Remnant of the Merger of Two Carbon-Oxygen Core White Dwarfs
Josiah Schwab
We construct evolutionary models of the remnant of the merger of two carbon-oxygen (CO) core white dwarfs (WDs). With total masses in the range , these remnants…
Line Identification and Excitation of Autoionizing States in a Late-Type, Low Mass Wolf-Rayet Star
Robert Williams, Catherine Manea, Bruce Margon +1
Identifications of a large fraction of previously unidentified lines in the complex spectrum of the low mass, late-type LMC [WC11] star J060819.93-715737.4 have been made utilizing…
The TRENDS High-contrast Imaging Survey. VIII. Compendium of Benchmark Objects
Erica J. Gonzales, Justin R. Crepp, Eric B. Bechter +5
The physical properties of faint stellar and substellar objects often rely on indirect, model-dependent estimates. For example, the masses of brown dwarfs are usually inferred usin…
An Asymmetric Eclipse Seen Towards the Pre-Main Sequence Binary System V928 Tau
Dirk van Dam, Matthew Kenworthy, Trevor David +21
K2 observations of the weak-lined T Tauri binary V928 Tau A+B show the detection of a single, asymmetric eclipse which may be due to a previously unknown substellar companion eclip…
High Contrast Thermal Infrared Spectroscopy with ALES: The 3-4m Spectrum of Andromedae b
Jordan M. Stone, Travis Barman, Andrew J. Skemer +7
We present the first band (2.8 to 4.1~m) spectroscopy of ~Andromedae~b, a companion orbiting at projected separation from its…
Multi-Gigayear White Dwarf Cooling Delays from Clustering-Enhanced Gravitational Sedimentation
Evan B. Bauer, Josiah Schwab, Lars Bildsten +1
Cooling white dwarfs (WDs) can yield accurate ages when theoretical cooling models fully account for the physics of the dense plasma of WD interiors. We use MESA to investigate coo…
A helium-flash-induced mixing event can explain the lithium abundances of red clump stars
Josiah Schwab
Observations demonstrate that the surface abundance of in low-mass stars changes dramatically between the tip of the red giant branch and the red clump. This naturally…
Stellar Evolution in AGN Disks
Matteo Cantiello, Adam S. Jermyn, Douglas N. C. Lin
Active Galactic Nuclei are powered by geometrically-thin accretion disks surrounding a central supermassive black hole. Here we explore the evolution of stars embedded in these ext…
On the dynamical interaction between overshooting convection and an underlying dipole magnetic field -- I. The non-dynamo regime
Lydia Korre, Nicholas H. Brummell, Pascale Garaud +1
Motivated by the dynamics in the deep interiors of many stars, we study the interaction between overshooting convection and the large-scale poloidal fields residing in radiative zo…
Carbon star formation as seen through the non-monotonic initial-final mass relation
Paola Marigo, Jeffrey D. Cummings, Jason Lee Curtis +13
The initial-final mass relation (IFMR) links the birth mass of a star to the mass of the compact remnant left at its death. While the relevance of the IFMR across astrophysics is u…
Horizontal shear instabilities at low Prandtl number
P. Garaud
Turbulent mixing in the radiative regions of stars is usually either ignored or crudely accounted for in most stellar evolution models. However, there is growing theoretical and ob…
A Survey for C II Emission-Line Stars in the Large Magellanic Cloud
Bruce Margon, Philip Massey, Kathryn F. Neugent +1
We present a narrow-band imaging survey of the Large Magellanic Cloud, designed to isolate the C II 7231, 7236 emission lines in objects as faint as . Th…
Common Envelope Wind Tunnel: Range of Applicability and Self-Similarity in Realistic Stellar Envelopes
Rosa Wallace Everson, Morgan MacLeod, Soumi De +2
Common envelope evolution, the key orbital tightening phase of the traditional formation channel for close binaries, is a multistage process that presents many challenges to the es…
The Art of Modeling Stellar Mergers and the Case of the B[e] Supergiant R4 in the Small Magellanic Cloud
Samantha Wu, Rosa Wallace Everson, Fabian R. N. Schneider +2
Most massive stars exchange mass with a companion, leading to evolution which is altered drastically from that expected of stars in isolation. Such systems are the result of unusua…
SN 2013aa and SN 2017cbv: Two Sibling Type Ia Supernovae in the spiral galaxy NGC 5643
Christopher R Burns, Chris Ashall, Carlos Contreras +26
We present photometric and spectroscopic observations of SN 2013aa and SN 2017cbv, two nearly identical type Ia supernovae (SNe Ia) in the host galaxy NGC 5643. The optical photome…
NuSTAR Observation of a Minuscule Microflare in a Solar Active Region
Kristopher Cooper, Iain G. Hannah, Brian W. Grefenstette +5
We present X-ray imaging spectroscopy of one of the weakest active region (AR) microflares ever studied. The microflare occurred at 11:04 UT on 2018 September 9 and we studie…
The tachocline revisited
Pascale Garaud
The solar tachocline is a shear layer located at the base of the solar convection zone. The horizontal shear in the tachocline is likely turbulent, and it is often assumed that thi…
Accelerated electrons observed down to <7 keV in a NuSTAR solar microflare
Lindsay Glesener, S"am Krucker, Jessie Duncan +6
We report the detection of emission from a non-thermal electron distribution in a small solar microflare (GOES class A5.7) observed by the Nuclear Spectroscopic Telescope Array (Nu…
The HOSTS survey for exozodiacal dust: Observational results from the complete survey
Steve Ertel, Denis Defrère, Philip M. Hinz +43
The Large Binocular Telescope Interferometer (LBTI) enables nulling interferometric observations across the N band (8 to 13 um) to suppress a star's bright light and probe for fain…
The Stars in M15 Were Born with the r-process
Evan N. Kirby, Gina Duggan, Enrico Ramirez-Ruiz +1
High-resolution spectroscopy of stars on the red giant branch (RGB) of the globular cluster M15 has revealed a large (~1 dex) dispersion in the abundances of r-process elements, li…