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20082026
most citedRevealing δ Cephei's Secret Companion and Intriguing Past

227 citations · 488 across the 18 of their papers we have counts for

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Showing 2018Show all

6 papers · 1 filter

astro-ph.SR2018

Updated astrometry and masses of the LUH 16 brown dwarf binary

P. F. Lazorenko, J. Sahlmann

The nearest known binary brown dwarf WISE J104915.57-531906.1AB (LUH 16) is a well-studied benchmark for our understanding of substellar objects. Previously published astrometry of…

astro-ph.GA2018

Gaia Data Release 2. Summary of the contents and survey properties

Gaia Collaboration, A. G. A. Brown, A. Vallenari +4

We present the second Gaia data release, Gaia DR2, consisting of astrometry, photometry, radial velocities, and information on astrophysical parameters and variability, for sources…

astro-ph.GA2018

First Gaia Dynamics of the Andromeda System: DR2 Proper Motions, Orbits, and Rotation of M31 and M33

Roeland P. van der Marel, Mark A. Fardal, Sangmo Tony Sohn +5

The 3D velocities of M31 and M33 are important for understanding the evolution and cosmological context of the Local Group. Their most massive stars are detected by Gaia, and we us…

astro-ph.IM2018

Gaia Data Release 2. Short-timescale variability processing and analysis

M. Roelens, L. Eyer, N. Mowlavi +13

The Gaia DR2 sample of short-timescale variable candidates results from the investigation of the first 22 months of Gaia photometry for a subsample of sources at the Gaia faint end…

astro-ph.IM2018

Gaia Data Release 2: Properties and validation of the radial velocities

D. Katz, P. Sartoretti, M. Cropper +51

For Gaia DR2 (GDR2), 280 million spectra, collected by the RVS instrument on-board Gaia, were processed and median radial velocities were derived for 9.8 million sources brighter t…

astro-ph.IM2018

Gaia Data Release 2: Photometric content and validation

D. W. Evans, M. Riello, F. De Angeli +9

Aims. We describe the photometric content of the second data release of the Gaia project (Gaia DR2) and its validation along with the quality of the data. Methods. The validation w…