Context: Most current radial velocity planet search programs have concentrated on stars of one solar mass. Our knowledge on the frequency of giant planets and brown dwarf companions to more massive stars is thus rather limited. In the case of solar-like stars, the frequency of short-period brown dwarf companions and very massive planets seems to be
This section contains the publications database that collects IAC articles published in scientific journals. Please, click on the arrow to see full search filter and sort options: author, journal, year, etc..
It also provides access to IAC Preprints Repository here: https://research.iac.es/preprints/
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A substellar component orbiting the F-star 30 Arietis BGuenther, E. W. et al.122009
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A substellar mass function for Alpha Persei
We present a deep, wide-field optical survey of the young stellar cluster Alpha Per, in which we have discovered a large population of candidate brown dwarfs. Subsequent infrared photometric follow-up shows that the majority of them are probable or possible members of the cluster, reaching to a minimum mass of 0.035 Msun. We have used this list of
Barrado y Navascués, D. et al.Advertised on:
122002 -
A superburst from 4U 1254-69
We report the detection with the BeppoSAX Wide Field Cameras of a superburst from 4U 1254-69. The superburst is preceded by a normal type-I X-ray burst, has a decay time that is the longest of all eight superbursts detected so far and a peak luminosity that is the lowest. Like for the other seven superbursts, the origin is a well-known type-I X-ray
in't Zand, J. J. M. et al.Advertised on:
122003 -
A survey of low density early-type galaxies in low density environments.
We have completed a survey of early-type galaxies in a region covering 700 sq. degrees with cz -20 that satisfy our isolation criteria. The sample galaxies obey the Mg-sigma relation but have a higher frequency of [OII] and [OIII] emission than found in the Fornax cluster. They appear to be younger than the ellipticals in the Fornax cluster having
Davies, R. et al.Advertised on:
122001 -
A Survey of Microvariability in Low Polarization Quasars: First Results
We are observing two sets of Low Polarization Quasars (LPQs), one of which have low (
Gonzalez-Perez, J. N. et al.Advertised on:
121995 -
A survey of the ISM in early-type galaxies. I. The ionized gas.
We present results of a CCD optical imaging survey of the ionized gas in 73 luminous elliptical and lenticular galaxies, selected from the RC3 catalog to represent a broad variety of X-ray, radio, infrared and kinematical properties. For each galaxy we have used broad-band R images and narrow-band images centered at the Hα and [NII] emission lines
Macchetto, F. et al.Advertised on:
121996