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28 papers · 1 filter
The most common habitable planets - atmospheric characterization of the subgroup of fast rotators
R. Pinotti
The current search for habitable planets has focused on Earth-like conditions of mass, volatile content and orbit. However, rocky planets following eccentric orbits, and drier than…
A new Milky Way halo star cluster in the Southern Galactic Sky
Eduardo Balbinot, B. X. Santiago, L. da Costa +7
We report on the discovery of a new Milky Way companion stellar system located at (RA, Dec) = (22h10m43.15s, +14:56:58.8). The discovery was made using the eighth data release of S…
Very Low-mass Stellar and Substellar Companions to Solar-like Stars from Marvels III: A Short-Period Brown Dwarf Candidate Around An Active G0Iv Subgiant
Bo Ma, Jian Ge, Rory Barnes +45
We present an eccentric, short-period brown dwarf candidate orbiting the active, slightly evolved subgiant star TYC 2087-00255-1, which has effective temperature T_eff = 5903+/-42…
Molecular emission from GG Car's circumbinary disk
Michaela Kraus, Mary Oksala, Dieter Nickeler +5
The appearance of the B[e] phenomenon in evolved massive stars such as B[e] supergiants is still a mystery. While these stars are generally found to have disks that are cool and de…
Development and first year of results from the heliometer of Observatorio Nacional
Alexandre H. Andrei, Victor A. D'Avila, Eugenio Reis Neto +5
Recent research on global climate changes points to three distinct sources of climate disturbance: anthropogenic; natural changes in the oceans and atmosphere; and irregularities i…
The SOAR Gravitational Arc Survey - I: Survey overview and photometric catalogs
Cristina Furlanetto, Basilio X. Santiago, Martin Makler +10
We present the first results of the SOAR (Southern Astrophysical Research) Gravitational Arc Survey (SOGRAS). The survey imaged 47 clusters in two redshift intervals centered at $z…