2004A&A...414L...9S

Query : 2004A&A...414L...9S

2004A&A...414L...9S - Astronomy and Astrophysics, volume 414, L9-12 (2004/1-4)

SIMBA's view of the ε Eri disk.

SCHUETZ O., NIELBOCK M., WOLF S., HENNING T. and ELS S.

Abstract (from CDS):

We present the first observational confirmation for an extended circumstellar dust disk around ε Eri. The observations were obtained with the bolometer array SIMBA at the 15m radio telescope SEST in Chile and measure the dust continuum at 1.2mm. The emission, with a total flux of 21.4mJy and a rms of 2.2mJy/beam, is resolved to a deconvolved size of 27.4" which corresponds to 88AU. No clear indication for a ring-like disk structure is seen, possibly also due to the telescope's large beam width of 24''. Models of the object's spectral energy distribution from IR to mm-wavelengths show that the emission can also be explained by a simple disk model. We further demonstrate the strong influence of noise and propose to be cautious with interpretations of the ring substructure.

Abstract Copyright: ∼

Journal keyword(s): stars: individual: ε Eri - circumstellar matter - planetary systems - submillimeter

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 * eps Eri BY* 03 32 55.8444911587 -09 27 29.739493865 5.19 4.61 3.73 3.00 2.54 K2V 1931 1

Query : 2004A&A...414L...9S

Basic data :
* eps Eri -- BY Dra Variable
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types: 		* (2013A&A,*,...), X (2015A&A,1AXG,...), PM* (Ci,LFT,...), UV (2EUVE,EUVE,...), ** (**,CCDM,...), IR (IRAS,IRC,...), BY* (2017ARep), Ro* (1996ApJ), V* (V*), NIR (2MASS)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) : 		03 32 55.8444911587 -09 27 29.739493865 (Optical) [ 0.1214 0.0930 90 ] A 2020yCat.1350....0G
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) : 		03 30 34.3594266810 -09 37 34.811408582 [ 0.1214 0.0930 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) : 		195.8446406895699 -48.0512999525119 [ 0.1214 0.0930 90 ]
Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode"
  • pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr)
  • pm-dec : mu-dec (expressed in the ICRS system in mas/yr)
  • [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the proper motion reference
Proper motions mas/yr : 		-974.758 20.876 [0.160 0.120 90] A 2020yCat.1350....0G
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, ∼=unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz : 		V(km/s) 16.376 [0.0001] / z(spectroscopic) 0.000055 [0.000000] / cz 16.38 [0.00]
   (Opt) A 2018A&A...616A...7S
Syntax of parallax is : 'value quality [error] bibcode'
  • value : parallax value
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • [error] : mean error
  • bibcode : bibcode of the parallax reference
Parallaxes (mas): 		310.5773 [0.1355] A 2020yCat.1350....0G
Spectral type is made of 3 parts: %coding is composed of 4 parts :
  • the spectral type, which is made of a temperature class, eventually a luminosity class (roman number) and/or spectral peculiarities;
  • a quality letter: A=best quality→E=worst quality, {� } =unknown quality %
  • a quality letter: A=best quality -> E=worst quality, {� } =unknown quality
  • bibcode : bibcode of the spectral type reference
Spectral type: 		K2V B 1989ApJS...71..245K
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (9) :
U 5.19 [~] C 2002yCat.2237....0D
B 4.61 [~] C 2002yCat.2237....0D
V 3.73 [~] C 2002yCat.2237....0D
R 3.00 [~] C 2002yCat.2237....0D
G 3.465752 [0.003075] C 2020yCat.1350....0G
I 2.54 [~] C 2002yCat.2237....0D
J 2.23 [~] C 2002yCat.2237....0D
H 1.75 [~] C 2002yCat.2237....0D
K 1.67 [~] C 2002yCat.2237....0D
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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notes:

Hierarchy : number of linked objects
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Identifiers (71) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* eps Eri GJ 144.0 PLX 742 SPOCS 171
* 18 Eri GJ 144 PLX 742.00 TD1 2301
** BLA 2 HD 22049 PMC 90-93 91 TIC 118572803
** MBA 1A HIC 16537 PM 03306-0938 TYC 5296-1533-1
1AXG J033256-0926 HIP 16537 PPM 185905 UBV 3410
BD-09 697 HR 1084 RAFGL 497 UBV M 9580
CCDM J03329-0927A IRAS 03305-0937 RAVE J033255.8-092730 uvby98 100022049
Ci 20 241 IRC -10048 RBS 439 V* eps Eri
1E 0330.5-0937 JP11 792 2RE J033253-092646 WDS J03329-0927A
2E 788 LFT 291 2RE J0332-092 WDS J03329-0927Aa,Ab
2E 0330.5-0937 LHS 1557 RE J0332-092 WEB 3160
2EUVE J0332-09.4 LPM 158 RE J033255-092717 YZ 0 4513
EUVE J0332-09.4 LTT 1675 ROT 531 YZ 99 836
FK5 127 2MASS J03325591-0927298 RX J0332.9-0927 Zkh 51
GC 4244 N30 726 1RXS J033256.4-092727 [FS2003] 0134
GCRV 1962 NAME Ran SACS 76 Gaia DR3 5164707970261890560
GEN# +1.00022049 NLTT 11207 SAO 130564 Gaia DR2 5164707970261630080
GES J03325495-0927294 8pc 310.75 SKY# 5366

References (1931 between 1850 and 2024) (Total 1931)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements


velocities : 27    distance : 2    Fe_H : 90    V* : 2    diameter : 1    ROT : 15    PLX : 5    PM : 8    MK : 39   

   

Observing logs


ISO : 11    herschel : 7    IUE : 172    XMM : 1   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : * eps Eri

Link by name to the catalogue in VizieR :

BD-09 697 CCDM J03329-0927A 2E 788 EUVE J0332-09.4 FK5 127
GJ 144.0 GJ 144 HD 22049 HIC 16537 HIP 16537
HR 1084 IRAS 03305-0937 IRC -10048 LHS 1557 2MASS J03325591-0927298
NLTT 11207 PLX 742 PPM 185905 RAFGL 497 RAVE J033255.8-092730
2RE J033253-092646 2RE J0332-092 1RXS J033256.4-092727 SAO 130564 TD1 2301
TYC 5296-1533-1 uvby98 100022049 V* eps Eri WDS J03329-0927A WDS J03329-0927Aa,Ab
Gaia DR3 5164707970261890560 Gaia DR2 5164707970261630080

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