Search Publications
SDSS-IV/MaNGA: Spectrophotometric Calibration Technique
Bizyaev, Dmitry; Schlegel, David J.; Bershady, Matthew A. +19 more
Mapping Nearby Galaxies at Apache Point Observatory (MaNGA), one of three core programs in the Sloan Digital Sky Survey-IV, is an integral-field spectroscopic survey of roughly 10,000 nearby galaxies. It employs dithered observations using 17 hexagonal bundles of 2″ fibers to obtain resolved spectroscopy over a wide wavelength range of 3600-10300 …
The Solar Neighborhood. XXXVII: The Mass-Luminosity Relation for Main-sequence M Dwarfs
McArthur, B. E.; Benedict, G. F.; Franz, O. G. +8 more
We present a mass-luminosity relation (MLR) for red dwarfs spanning a range of masses from 0.62 {{ M }}⊙ to the end of the stellar main sequence at 0.08 {{ M }}⊙ . The relation is based on 47 stars for which dynamical masses have been determined, primarily using astrometric data from Fine Guidance Sensors (FGS) 3 and 1r, whi…
No Thermal Inversion and a Solar Water Abundance for the Hot Jupiter HD 209458b from HST/WFC3 Spectroscopy
Madhusudhan, Nikku; Fortney, Jonathan J.; Stevenson, Kevin B. +6 more
The nature of the thermal structure of hot Jupiter atmospheres is one of the key questions raised by the characterization of transiting exoplanets over the past decade. There have been claims that many hot Jupiters exhibit atmospheric thermal inversions. However, these claims have been based on broadband photometry rather than the unambiguous iden…
Version 1 of the Hubble Source Catalog
Casertano, Stefano; White, Richard L.; Whitmore, Bradley C. +9 more
The Hubble Source Catalog is designed to help optimize science from the Hubble Space Telescope (HST) by combining the tens of thousands of visit-based source lists in the Hubble Legacy Archive (HLA) into a single master catalog. Version 1 of the Hubble Source Catalog includes WFPC2, ACS/WFC, WFC3/UVIS, and WFC3/IR photometric data generated using …
Host Galaxy Identification for Supernova Surveys
Carretero, Jorge; Castander, Francisco J.; Miquel, Ramon +57 more
Host galaxy identification is a crucial step for modern supernova (SN) surveys such as the Dark Energy Survey and the Large Synoptic Survey Telescope, which will discover SNe by the thousands. Spectroscopic resources are limited, and so in the absence of real-time SN spectra these surveys must rely on host galaxy spectra to obtain accurate redshif…
The First Circumbinary Planet Found by Microlensing: OGLE-2007-BLG-349L(AB)c
Bennett, D. P.; Gal-Yam, A.; Ofek, E. +84 more
We present the analysis of the first circumbinary planet microlensing event, OGLE-2007-BLG-349. This event has a strong planetary signal that is best fit with a mass ratio of q ≈ 3.4 × 10-4, but there is an additional signal due to an additional lens mass, either another planet or another star. We find acceptable light-curve fits with t…
Large Magellanic Cloud Near-infrared Synoptic Survey. II. The Wesenheit Relations and Their Application to the Distance Scale
Wagner-Kaiser, R.; Sarajedini, Ata; Macri, Lucas M. +4 more
We present new near-infrared (NIR) Cepheid period-Wesenheit (P-W) relations in the LMC using time-series observations from the Large Magellanic Cloud NIR Synoptic Survey. We also derive optical+NIR P-W relations using V and I magnitudes from the Optical Gravitational Lensing Experiment. We employ our new JHKs data to determine an indepe…
The Spectral Energy Distribution of the Coldest Known Brown Dwarf
Luhman, K. L.; Esplin, T. L.
WISE J085510.83-071442.5 (hereafter WISE 0855-0714) is the coldest known brown dwarf (∼250 K) and the fourth-closest known system to the Sun (2.2 pc). It has been previously detected only in the J band and two mid-IR bands. To better measure its spectral energy distribution (SED), we have performed deep imaging of WISE 0855-0714 in six optical and…
The Distance to M104
Dolphin, Andrew E.; Skillman, Evan D.; Berg, Danielle +2 more
M104 (NGC 4594; the Sombrero galaxy) is a nearby, well-studied elliptical galaxy included in scores of surveys focused on understanding the details of galaxy evolution. Despite the importance of observations of M104, a consensus distance has not yet been established. Here, we use newly obtained Hubble Space Telescope optical imaging to measure the…
Deep HST/STIS Visible-light Imaging of Debris Systems around Solar Analog Hosts
Henning, Thomas; Stark, Christopher C.; Debes, John H. +11 more
We present new Hubble Space Telescope observations of three a priori known starlight-scattering circumstellar debris systems (CDSs) viewed at intermediate inclinations around nearby close-solar analog stars: HD 207129, HD 202628, and HD 202917. Each of these CDSs possesses ring-like components that are more massive analogs of our solar system's Ed…