Search Publications
The Kepler Smear Campaign: Light Curves for 102 Very Bright Stars
Davies, Guy R.; Bieryla, Allyson; Latham, David W. +19 more
We present the first data release of the Kepler Smear Campaign, using collateral “smear” data obtained in the Kepler four-year mission to reconstruct light curves of 102 stars too bright to have been otherwise targeted. We describe the pipeline developed to extract and calibrate these light curves and show that we attain photometric precision comp…
Large angular scale fluctuations of near-infrared extragalactic background light based on the IRTS observations
Jeong, Woong-Seob; Lee, Hyung Mok; Tanaka, Masahiro +4 more
We measure the spatial fluctuations of the Near-Infrared Extragalactic Background Light (NIREBL) from 2° to 20° in angular scale at the 1.6 and 2.2 µ m using data obtained with Near-Infrared Spectrometer (NIRS) on board the Infrared Telescope in Space (IRTS). The brightness of the NIREBL is estimated by subtracting foreground components such…
Colors of Trans-Neptunian Contact Binaries
Thirouin, Audrey; Sheppard, Scott S.
The g‧r‧i‧ colors of seven likely and potential contact binaries in the Kuiper Belt were acquired with the Magellan-Baade telescope and combined with colors from the literature to understand contact binary surfaces. The likely and potential contact binaries discovered in the dynamically cold classical population display very red/ultra-red colors. …
On Doppler Shift and Its Center-to-limb Variation in Active Regions in the Transition Region
Tripathi, Durgesh; Ghosh, Avyarthana; Klimchuk, James A.
A comprehensive understanding of the structure of Doppler motions in the transition region including the center-to-limb variation and its relationship with the magnetic field structure is vital for the understanding of mass and energy transfer in the solar atmosphere. In this paper, we have performed such a study in an active region using the Si I…
Chandra and Hubble Space Telescope observations of dark gamma-ray bursts and their host galaxies
Lyman, J. D.; Fruchter, A. S.; Perley, D. A. +8 more
We present a study of 21 dark gamma-ray burst (GRB) host galaxies, predominantly using X-ray afterglows obtained with the Chandra X-Ray Observatory (CXO) to precisely locate the burst in deep Hubble Space Telescope (HST) imaging of the burst region. The host galaxies are well-detected in F160W in all but one case and in F606W imaging in 60 per cen…
67P/Churyumov-Gerasimenko active areas before perihelion identified by GIADA and VIRTIS data fusion
Fulle, M.; Erard, S.; Capaccioni, F. +16 more
We characterized 67P/Churyumov-Gerasimenko's cometary activity during its inbound arc before perihelion (2014 August-2015 January). We focused on the geomorphological regions of the Northern hemisphere observed by the ESA/Rosetta space probe during this time period. The GIADA dust detector characterized the physical properties of the fluffy and co…
A Radial Velocity Survey of Embedded Sources in the Rho Ophiuchi Cluster
Greene, Thomas P.; Gibb, Erika L.; Wilking, Bruce A. +3 more
We present the results of a radial velocity survey of young stellar objects (YSOs) in early stages of evolution in the core of the L1688 molecular cloud. New and archival spectra obtained with four high-resolution infrared spectrographs were analyzed using Markov chain Monte Carlo techniques that simultaneously fit for the radial velocity, T …
Constraining the magnetic field on white dwarf surfaces; Zeeman effects and fine structure constant variation
Barstow, M. A.; Holberg, J. B.; Webb, J. K. +12 more
White dwarf (WD) atmospheres are subjected to gravitational potentials around 105 times larger than occur on Earth. They provide a unique environment in which to search for any possible variation in fundamental physics in the presence of strong gravitational fields. However, a sufficiently strong magnetic field will alter absorption lin…
Dust and Snow Cover on Saturn's Icy Moons
West, R. D.; Le Gall, A.; Bonnefoy, L. E.
The final analysis of the Cassini radar observations of Saturn's icy moons presented here shows that the exchange of material between the planet's dust rings and moons, which is specific to the Saturnian system, plays a key role in the current state of the airless satellite regolith. Far from Saturn, the vast debris ring from Phoebe progressively …
Subaru narrow-band imaging search for Lyman continuum from galaxies at z > 3 in the GOODS-N field
Inoue, Akio K.; Yamada, Toru; Iwata, Ikuru +2 more
We report results of a search for galaxies at z > 3 with Lyman continuum (LyC) emission using a narrow-band filter NB359 with Subaru/Suprime-Cam in an ∼800 arcmin2 blank field around the GOODS-N. We use 103 star-forming galaxies (SFGs) and 8 active galactic nuclei (AGNs) with spectroscopic redshifts in a range between 3.06 and 3.5 an…