590 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Goddard Space Flight CenterUS51 papers
- University of California, BerkeleyUS50 papers
- Jet Propulsion LaboratoryUS48 papers
- Centre National de la Recherche ScientifiqueFR42 papers
- California Institute of TechnologyUS41 papers
- University of ArizonaUS38 papers
- Space Telescope Science InstituteUS35 papers
- University of California, Los AngelesUS35 papers
- University of CincinnatiUS33 papers
- University of California San DiegoUS30 papers
- Space Science InstituteUS27 papers
- University of Hawaii SystemUS24 papers
46 papers · 1 filter
Energy partitioning between thermal and non-thermal electrons and ions in magnetotail reconnection
Abhishek Rajhans, Mitsuo Oka, Marit Øieroset +9
Magnetic reconnection is an explosive energy release event. It plays an important role in accelerating particles to high non-thermal energies. These particles often exhibit energy…
Modeling the Multiwavelength Evolution of the V960 Mon System
Adolfo S. Carvalho, Lynne A. Hillenbrand, Franz-Josef Hambsch +7
We study the evolution of the FU Ori object V960 Mon since its outburst, using available multi-wavelength photometric time series over 8 years, complemented by several epochs of mo…
V5856 Sagittarii/2016: Broad Multi-Epoch Spectral Coverage of a Sustained High Luminosity Nova
Robert Williams, Frederick M. Walter, Richard J. Rudy +4
Nova V5856 Sagittarii is unique for having remained more than nine magnitudes above its pre-outburst brightness for more than six years. Extensive visible and IR spectra from the t…
CME Evolution in the Structured Heliosphere and Effects at Earth and Mars During Solar Minimum
Erika Palmerio, Christina O. Lee, Ian G. Richardson +13
The activity of the Sun alternates between a solar minimum and a solar maximum, the former corresponding to a period of "quieter" status of the heliosphere. During solar minimum, i…
USNO Bright Star Catalog, version 1
Norbert Zacharias, Valeri V. Makarov, Charles T. Finch +3
USNO Bright Star Catalog (UBSC) is a new astrometric catalog of 1423 brightest stars covering the entire sky, which is published online. It is nearly complete to mag except f…
Accurate Ground-based Astrometry of Naked-eye Stars: The United States Naval Observatory Bright-Star Astrometric Database
Jeffrey A. Munn, John P. Subasavage, Hugh C. Harris +1
We present the United States Naval Observatory (USNO) Bright-Star Astrometric Database (UBAD), a current-epoch high-accuracy astrometric catalog. The catalog consists of 364 bright…
Understanding the Origins of Problem Geomagnetic Storms Associated With "Stealth" Coronal Mass Ejections
Nariaki V. Nitta, Tamitha Mulligan, Emilia K. J. Kilpua +14
Geomagnetic storms are an important aspect of space weather and can result in significant impacts on space- and ground-based assets. The majority of strong storms are associated wi…
Investigating Remote-sensing Techniques to Reveal Stealth Coronal Mass Ejections
Erika Palmerio, Nariaki V. Nitta, Tamitha Mulligan +7
Eruptions of coronal mass ejections (CMEs) from the Sun are usually associated with a number of signatures that can be identified in solar disc imagery. However, there are cases in…
Discovery of a 310-day Period from the Enshrouded Massive System NaSt1 (WR 122)
Ryan M. Lau, Samaporn Tinyanont, Matthew J. Hankins +15
We present optical and infrared (IR) light curves of NaSt1, also known as Wolf-Rayet (WR) 122, with observations from Palomar Gattini-IR (PGIR), the Zwicky Transient Facility (ZTF)…
Projected Rotational Velocities and Fundamental Properties of Low-Mass Pre-Main Sequence Stars in the Taurus-Auriga Star Forming Region
Larissa A. Nofi, Christopher M. Johns-Krull, Ricardo López-Valdivia +11
The projected stellar rotational velocity () is critical for our understanding of processes related to the evolution of angular momentum in pre-main sequence stars. We pr…
The Search for Failed Supernovae with the Large Binocular Telescope: N6946-BH1, Still No Star
C. M. Basinger, C. S. Kochanek, S. M. Adams +2
We present new Large Binocular Telescope, Hubble Space Telescope, and Spitzer Space Telescope data for the failed supernova candidate N6946-BH1. We also report an unsuccessful atte…
Berkeley Supernova Ia Program: Data Release of 637 Spectra from 247 Type Ia Supernovae
Benjamin E. Stahl, WeiKang Zheng, Thomas de Jaeger +18
We present 637 low-redshift optical spectra collected by the Berkeley Supernova Ia Program (BSNIP) between 2009 and 2018, almost entirely with the Kast double spectrograph on the S…
The Solar Neighborhood XLV. The Stellar Multiplicity Rate of M Dwarfs Within 25 pc
Jennifer G. Winters, Todd J. Henry, Wei-Chun Jao +6
We present results of the largest, most comprehensive study ever done of the stellar multiplicity of the most common stars in the Galaxy, the red dwarfs. We have conducted an all-s…
Multi-epoch Direct Imaging and Time-Variable Scattered Light Morphology of the HD 163296 Protoplanetary Disk
Evan A. Rich, John P. Wisniewski, Thayne Currie +58
We present H-band polarized scattered light imagery and JHK high-contrast spectroscopy of the protoplanetary disk around HD 163296 observed with the HiCIAO and SCExAO/CHARIS instru…
The Berkeley Sample of Stripped-Envelope Supernovae
Isaac Shivvers, Alexei V. Filippenko, Jeffrey M. Silverman +22
We present the complete sample of stripped-envelope supernova (SN) spectra observed by the Lick Observatory Supernova Search (LOSS) collaboration over the last three decades: 888 s…
Distant White Dwarfs in the US Naval Observatory Flagstaff Station Parallax Sample
S. K. Leggett, P. Bergeron, John P. Subasavage +18
This paper presents new trigonometric parallaxes and proper motions for 214 stars. The measurements were made at the US Naval Observatory Flagstaff Station (NOFS) between 1989 and…
Dwarf carbon stars are likely metal-poor binaries and unlikely hosts to carbon planets
Lewis J. Whitehouse, J. Farihi, P. J. Green +2
Dwarf carbon stars make up the largest fraction of carbon stars in the Galaxy with around 1200 candidates known to date primarily from the Sloan Digital Sky Survey. They either pos…
Stripped-envelope supernova SN 2004dk is now interacting with hydrogen-rich circumstellar material
Jon C. Mauerhan, Alexei V. Filippenko, Weikang Zheng +4
The dominant mechanism and time scales over which stripped-envelope supernovae (SNe) progenitor stars shed their hydrogen envelopes are uncertain. Observations of Type Ib and Ic SN…
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…
Variability of Disk Emission in Pre-Main Sequence and Related Stars IV. Investigating the Structural Changes in the Inner Disk Region of MWC 480
Rachel B. Fernandes, Zachary C. Long, Monika Pikhartova +8
We present five epochs of near IR observations of the protoplanetary disk around MWC 480 (HD31648) obtained with the SpeX spectrograph on NASA's Infrared Telescope Facility (IRTF)…
Spectral Evidence for an Inner Carbon-Rich Circumstellar Dust Belt in the Young HD36546 A-Star System
Carey M. Lisse, Mike L. Sitko, Ray W. Russell +5
Using the NASA/IRTF SpeX & BASS spectrometers we have obtained novel 0.7 - 13 um observations of the newly imaged HD36546 debris disk system. The SpeX spectrum is most consistent w…
Accretion and Magnetic Reconnection in the Classical T Tauri Binary DQ Tau
Benjamin M. Tofflemire, Robert D. Mathieu, David R. Ardila +5
Binary star-formation theory predicts that close binaries (a<100 AU) will experience periodic pulsed accretion events as streams of material form at the inner edge of a circumbinar…
Dynamical Mass Measurement of the Young Spectroscopic Binary V343 Normae AaAb Resolved With the Gemini Planet Imager
Eric L. Nielsen, Robert J. De Rosa, Jason Wang +44
We present new spatially resolved astrometry and photometry from the Gemini Planet Imager of the inner binary of the young multiple star system V343 Normae, which is a member of th…
Panchromatic Imaging of a Transitional Disk: The Disk of GM Aur in Optical and FUV Scattered Light
Jeremy Hornbeck, Jeremy Swearingen, Carol Grady +18
We have imaged GM Aur with HST, detected its disk in scattered light at 1400A and 1650A, and compared these with observations at 3300A, 5550A, 1.1 microns, and 1.6 microns. The sca…