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The Hubble Wide Field Camera 3 Test of Surfaces in the Outer Solar System: Spectral Variation on Kuiper Belt Objects
Fraser, Wesley C.; Brown, Michael E.; Glass, Florian
Here, we present additional photometry of targets observed as part of the Hubble Wide Field Camera 3 (WFC3) Test of Surfaces in the Outer Solar System. Twelve targets were re-observed with the WFC3 in the optical and NIR wavebands designed to complement those used during the first visit. Additionally, all of the observations originally presented b…
The Cluster Ages Experiment (CASE). VII. Analysis of Two Eclipsing Binaries in the Globular Cluster NGC 6362
Thompson, I. B.; Schwarzenberg-Czerny, A.; Dotter, A. +5 more
We use photometric and spectroscopic observations of the detached eclipsing binaries V40 and V41 in the globular cluster NGC 6362 to derive masses, radii, and luminosities of the component stars. The orbital periods of these systems are 5.30 and 17.89 days, respectively. The measured masses of the primary and secondary components (Mp, M…
Chemical Abundances and Dust in the Halo Planetary Nebula K648 in M15: Its Origin and Evolution Based on an Analysis of Multiwavelength Data
Otsuka, Masaaki; Hyung, Siek; Tajitsu, Akito
We report on an investigation of the extremely metal-poor and C-rich planetary nebula (PN) K648 in M15 using the UV to far-infrared data obtained using Subaru, the Hubble Space Telescope, the Far Ultraviolet Spectroscopic Explorer, Spitzer, and Herschel. We determined the nebular abundances of 10 elements. The enhancement of F ([F/H] = +0.96) is c…
Ongoing growth of the brightest cluster galaxies via major dry mergers in the last ∼6 Gyr
Liu, F. S.; Meng, X. M.; Lei, F. J. +1 more
Brightest cluster galaxies (BCGs) might have been assembled relatively late (z < 1) via mergers. By exploiting the high-resolution HST/ACS imaging, we find four BCGs (COSMOS-P 125516, 102810, 036694 and 089357) in major dry merging in 29 X-ray clusters at 0.3 ≤ z ≤ 0.6 in the Cosmological Evolutionary Survey (COSMOS). These BCGs show prominent …
Confirming HD 23478 as a new magnetic B star hosting an Hα-bright centrifugal magnetosphere
Wade, G. A.; Bohlender, D. A.; Neiner, C. +11 more
In this paper, we report 23 magnetic field measurements of the B3IV star HD 23478: 12 obtained from high-resolution Stokes V spectra using the ESPaDOnS (Canada-France-Hawaii Telescope) and Narval (Télescope Bernard Lyot) spectropolarimeters, and 11 from medium-resolution Stokes V spectra obtained with the DimaPol spectropolarimeter (Dominion Astro…
Search for exoplanet around northern circumpolar stars. Four planets around HD 11755, HD 12648, HD 24064, and 8 Ursae Minoris
Kim, S. -L.; Lee, C. -U.; Jeong, G. +7 more
Aims: This program originated as the north pole region extension of the established exoplanet survey using the 1.8 m telescope at Bohyunsan Optical Astronomy Observatory (BOAO). The aim of our paper is to find exoplanets in northern circumpolar stars with a precise radial velocity (RV) survey.
Methods: We selected about 200 northern circ…
Reconstructing Emission from Pre-reionization Sources with Cosmic Infrared Background Fluctuation Measurements by the JWST
Kashlinsky, A.; Mather, J. C.; Helgason, K. +3 more
We present new methodology to use cosmic infrared background (CIB) fluctuations to probe sources at 10≲ z≲ 30 from a James Webb Space Telescope (JWST)/NIRCam configuration that will isolate known galaxies to 28 AB mag at 0.5-5 µm. At present significant mutually consistent source-subtracted CIB fluctuations have been identified in the Spitze…
Detection of the Intermediate-width Emission Line Region in Quasar OI 287 with the Broad Emission Line Region Obscured by the Dusty Torus
Li, Zhenzhen; Zhou, Hongyan; Hao, Lei +8 more
The existence of intermediate-width emission line regions (IELRs) in active galactic nuclei has been discussed for over two decades. A consensus, however, is yet to be arrived at due to the lack of convincing evidence for their detection. We present a detailed analysis of the broadband spectrophotometry of the partially obscured quasar OI 287. The…
Large-scale environment of z ∼ 5.7 C IV absorption systems -II. Spectroscopy of Lyman α emitters
Ouchi, Masami; Koyama, Yusei; Díaz, C. Gonzalo +2 more
The flow of baryons to and from a galaxy, which is fundamental for galaxy formation and evolution, can be studied with galaxy-metal absorption system pairs. Our search for galaxies around C IV absorption systems at z ∼ 5.7 showed an excess of photometric Lyman α emitter (LAE) candidates in the fields J1030+0524 and J1137+3549. Here, we present spe…
Probing the Masses and Radii of Donor Stars in Eclipsing X-Ray Binaries with the Swift Burst Alert Telescope
Corbet, Robin H. D.; Krimm, Hans A.; Coley, Joel B.
Physical parameters of both the mass donor and compact object can be constrained in X-ray binaries with well-defined eclipses, as our survey of wind-fed supergiant X-ray binaries IGR J16393-4643, IGR J16418-4532, IGR J16479-4514, IGR J18027-2016, and XTE J1855-026 reveals. Using the orbital period and Kepler’s third law, we express the eclipse hal…