2004ApJ...612..481P


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.17CEST13:41:29

2004ApJ...612..481P - Astrophys. J., 612, 481-495 (2004/September-1)

Limits on the optical brightness of the ε Eridani dust ring.

PROFFITT C.R., SAHU K., LIVIO M., KRIST J., CALZETTI D., GILLILAND R., GRADY C., LINDLER D., WOODGATE B., HEAP S., CLAMPIN M., GULL T.R. and LISSE C.M.

Abstract (from CDS):

The STIS CCD camera on the Hubble Space Telescope (HST) was used to take deep optical images near the K2 V main-sequence star ε Eridani in an attempt to find an optical counterpart of the dust ring previously imaged by submillimeter observations. Upper limits for the optical brightness of the dust ring are determined and discussed in the context of the scattered starlight expected from plausible dust models. We find that even if the dust is smoothly distributed in symmetrical rings, the optical surface brightness of the dust, as measured with the HST STIS CCD clear aperture at 55 AU from the star, cannot be brighter than about 25 STMAG/arcsec2. This upper limit excludes some solid-grain models for the dust ring that can fit the IR and submillimeter data. Magnitudes and positions for ~59 discrete objects between 12".5 and 58" from ε Eri are reported. Most if not all of these objects are likely to be background stars and galaxies.

Abstract Copyright:

Journal keyword(s): Stars: Circumstellar Matter - Stars: Individual: Constellation Name: ε Eridani

VizieR on-line data: <Available at CDS (J/ApJ/612/481): table9.dat>

Nomenclature: Table 9: [PSL2004] JHHMMSS.ssss+DDMMSS.sss N=59.

Simbad objects: 5

goto Full paper

goto View the reference in ADS

Number of rows : 5

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 * eps Eri BY* 03 32 55.8449634 -09 27 29.731165 5.19 4.61 3.73 3.00 2.54 K2V 1658 1
2 * del Eri RS* 03 43 14.9008787 -09 45 48.208444 5.13 4.46 3.54 2.82 2.32 K0+IV 533 0
3 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 1597 1
4 HD 109573 PM* 12 36 01.0317721349 -39 52 10.222698506   5.786 5.774 7.25 5.81 A0V 535 1
5 HD 141569 pr* 15 49 57.7484743862 -03 55 16.344023102 7.22 7.20 7.12 7.00 7.04 A2VekB9mB9(_lB) 454 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2004ApJ...612..481P and select 'bookmark this link' or equivalent in the popup menu


2019.10.17-13:41:29

© Université de Strasbourg/CNRS

    • Contact