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The Baryon Oscillation Spectroscopic Survey of SDSS-III
Weiner, Benjamin J.; Finley, Hayley; Brandt, W. N. +162 more
The Baryon Oscillation Spectroscopic Survey (BOSS) is designed to measure the scale of baryon acoustic oscillations (BAO) in the clustering of matter over a larger volume than the combined efforts of all previous spectroscopic surveys of large-scale structure. BOSS uses 1.5 million luminous galaxies as faint as i = 19.9 over 10,000 deg2…
The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)
Zacharias, N.; Finch, C. T.; Girard, T. M. +4 more
The fourth United States Naval Observatory (USNO) CCD Astrograph Catalog, UCAC4, was released in 2012 August (double-sided DVD and CDS data center Vizier catalog I/322). It is the final release in this series and contains over 113 million objects; over 105 million of them with proper motions (PMs). UCAC4 is an updated version of UCAC3 with about t…
Cosmicflows-2: The Data
Dolphin, Andrew E.; Wu, Po-Feng; Shaya, Edward J. +11 more
Cosmicflows-2 is a compilation of distances and peculiar velocities for over 8000 galaxies. Numerically the largest contributions come from the luminosity-line width correlation for spirals, the Tully-Fisher relation (TFR), and the related fundamental plane relation for E/S0 systems, but over 1000 distances are contributed by methods that provide …
Confirmation of Faint Dwarf Galaxies in the M81 Group
Chiboucas, Kristin; Tully, R. Brent; Karachentsev, Igor D. +1 more
We have followed up on the results of a 65 deg2 CFHT/MegaCam imaging survey of the nearby M81 Group searching for faint and ultra-faint dwarf galaxies. The original survey turned up 22 faint candidate dwarf members. Based on two-color HST ACS/WFC and WFPC2 photometry, we now confirm 14 of these as dwarf galaxy members of the group. Dist…
The HERSCHEL Inventory of The Agents of Galaxy Evolution in the Magellanic Clouds, a Herschel Open Time Key Program
Poglitsch, A.; van Loon, J. Th.; Bernard, J. -P. +52 more
We present an overview of the HERschel Inventory of The Agents of Galaxy Evolution (HERITAGE) in the Magellanic Clouds project, which is a Herschel Space Observatory open time key program. We mapped the Large Magellanic Cloud (LMC) and Small Magellanic Cloud (SMC) at 100, 160, 250, 350, and 500 µm with the Spectral and Photometric Imaging Re…
The Influence of Dark Matter Halos on Dynamical Estimates of Black Hole Mass: 10 New Measurements for High-σ Early-type Galaxies
Saglia, R. P.; Nowak, N.; Thomas, J. +7 more
Adaptive optics assisted SINFONI observations of the central regions of 10 early-type galaxies are presented. Based primarily on the SINFONI kinematics, 10 black hole (BH) masses occupying the high-mass regime of the M BH-σ relation are derived using three-integral Schwarzschild models. The effect of dark matter (DM) inclusion on the BH…
Kronoseismology: Using Density Waves in Saturn's C Ring to Probe the Planet's Interior
Nicholson, P. D.; Hedman, M. M.
Saturn's C ring contains multiple spiral patterns that appear to be density waves driven by periodic gravitational perturbations. In other parts of Saturn's rings, such waves are generated by Lindblad resonances with Saturn's various moons, but most of the wave-like C-ring features are not situated near any strong resonance with any known moon. Us…
UVUDF: Ultraviolet Imaging of the Hubble Ultra Deep Field with Wide-Field Camera 3
Finkelstein, Steven L.; Ferguson, Henry C.; Giavalisco, Mauro +23 more
We present an overview of a 90 orbit Hubble Space Telescope treasury program to obtain near-ultraviolet imaging of the Hubble Ultra Deep Field using the Wide Field Camera 3 UVIS detector with the F225W, F275W, and F336W filters. This survey is designed to: (1) investigate the episode of peak star formation activity in galaxies at 1 < z < 2.5…
Depleted Galaxy Cores and Dynamical Black Hole Masses
Saglia, R. P.; Nowak, N.; Thomas, J. +4 more
Shallow cores in bright, massive galaxies are commonly thought to be the result of scouring of stars by mergers of binary supermassive black holes. Past investigations have suggested correlations between the central black hole mass and the stellar light or mass deficit in the core, using proxy measurements of M BH or stellar mass-to-lig…
An Exponential Decline at the Bright End of the z = 6 Galaxy Luminosity Function
Willott, Chris J.; Kneib, Jean-Paul; Ilbert, Olivier +7 more
We present the results of a search for the most luminous star-forming galaxies at redshifts z ≈ 6 based on Canada-France-Hawaii Telescope Legacy Survey data. We identify a sample of 40 Lyman break galaxies (LBGs) brighter than magnitude z' = 25.3 across an area of almost 4 deg2. Sensitive spectroscopic observations of seven galaxies pro…