681 citations · 1.1k across the 6 of their papers we have counts for
6 papers
The extreme CNO-enhanced composition of the primitive iron-poor dwarf star J0815+4729
Jonay I. González Hernández, David S. Aguado, Carlos Allende Prieto +2
We present an analysis of high-resolution Keck/HIRES spectroscopic observations of J0815+4729, an extremely carbon-enhanced, iron-poor dwarf star. These high-quality data allow us…
J0815+4729: A chemically primitive dwarf star in the Galactic Halo observed with Gran Telescopio Canarias
D. S. Aguado, J. I. González Hernández, C. Allende Prieto +1
We report the discovery of the carbon-rich ultra metal-poor unevolved star J0815+4729. This dwarf star was selected from SDSS/BOSS as a metal-poor candidate and follow-up spectrosc…
The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment
Bela Abolfathi, D. S. Aguado, Gabriela Aguilar +344
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since July 2014. This paper describes the second data release from this phase, and the fourtee…
The Pristine survey I: Mining the Galaxy for the most metal-poor stars
Else Starkenburg, Nicolas Martin, Kris Youakim +22
We present the Pristine survey, a new narrow-band photometric survey focused on the metallicity-sensitive Ca H & K lines and conducted in the northern hemisphere with the wide-fiel…
Very Low-Mass Stellar and Substellar Companions to Solar-like Stars From MARVELS VI: A Giant Planet and a Brown Dwarf Candidate in a Close Binary System HD 87646
Bo Ma, Jian Ge, Alex Wolszczan +34
We report the detections of a giant planet (MARVELS-7b) and a brown dwarf candidate (MARVELS-7c) around the primary star in the close binary system, HD 87646. It is the first close…
No surviving evolved companions to the progenitor of supernova SN 1006
Jonay I. Gonzalez Hernandez, Pilar Ruiz-Lapuente, Hugo M. Tabernero +4
Type Ia supernovae are thought to occur as a white dwarf made of carbon and oxygen accretes sufficient mass to trigger a thermonuclear explosion. The accretion could occur sl…