1997A&AS..121..301C


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.20CEST12:25:41

1997A&AS..121..301C - Astron. Astrophys., Suppl. Ser., 121, 301-319 (1997/February-0)

HST photometry: Can UV colors probe the Galaxy ages?

CHIOSI C., VALLENARI A. and BRESSAN A.

Abstract (from CDS):

We present grids of magnitudes and colours for the WFPC2 of the refurbished HST using pass-bands from the far UV to the near infrared, i.e. the filters F170W, F218W, F255W, F300W, F336W, F439W, F450W, F555W, F606W, F702W, F814W, and F850LP. In addition to this, we consider also the filters F150W+F130LP, F175W, F220W and F342W of the old HST in the FOC mode in which a great deal of observations have been taken. The theoretical magnitudes and colours are calculated convolving spectral energy distributions with different metallicity (Z), effective temperature (Teff), and gravity with the pass-band transmission, response of the camera, and telescope assembly. In order to enable an easy usage of the present results we provide tabulations of Bolometric Corrections BC{DELTA}λHST as function of gravity, Teff, and chemical composition for each pass-band under consideration. As already pointed out by Yi et al. (1995PASP..107..273Y), the UV filters suffer from the visible/red-leak problem, which destroys the monotonic relation between colours and Teff and causes serious difficulties to analyze the data. With the aid of the above technique we calculate isochrones in the observational colour-magnitude diagram (CMD) and integrated magnitudes and colours of single stellar populations (SSP). The ages span the range from 18Gyr to 0.01 Gyr. For the sake of brevity, results are described here in some detail limited to the solar chemical composition [Y=0.28 Z=0.020]. In addition to this, we present synthetic CMDs for a composite sample of stars containing both young and old objects as they would appear in various pass-bands. Finally, we address the question whether the variation of the UV colours of elliptical galaxies as a function of the red-shift shows signatures from which one can infer the age and the type of source emitting the UV flux. The goal is achieved looking at the red-shift dependence of colours obtained from the pass-bands F170W, F210W, and F555W at varying the Hubble constant H0 and deceleration parameter q0 defining the model of the Universe. It is found that those colours run differently according to underlying source, i.e either P-AGB or P-AGB plus H-HB and AGB-manque stars (see below for details) and the cosmological parameters. If the UV flux is mainly generated by P-AGB plus H-HB and AGB-manque stars a marked discontinuity in suitable UV colours is expected at the red-shift corresponding to the age of about 5.6Gyr.

Abstract Copyright:

Journal keyword(s): techniques: photometry - stars: HR diagram - galaxies: ellipticals - galaxies: evolution - ultraviolet: galaxies

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 - 2019
#notes
1 M 110 GiG 00 40 22.0544552438 +41 41 07.496294862   8.92 8.07     ~ 1183 1

    Equat.    Gal    SGal    Ecl

C.D.S. - SIMBAD4 rel 1.7 - 2019.10.20CEST12:25:41

Available data : Basic data  •  Identifiers  •  Plot & images  •  Bibliography  •  Measurements  •  External archives  •  Notes  •  Annotations


Basic data :
M 110 -- Galaxy in Group of Galaxies
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:
G (Ref,LEDA,...), GiG (Ref,[CHM2007]), IR (IRAS,ISOSS), * (Gaia)
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] : coordinates error major axis, minor axis (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) :
00 40 22.0544552438 +41 41 07.496294862 (Optical) [ 2.0237 1.6855 90 ] C 2018yCat.1345....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] : coordinates error major axis, minor axis (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) :
00 37 38.2640957632 +41 24 39.918515022 [ 2.0237 1.6855 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] : coordinates error major axis, minor axis (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) :
120.7162630976154 -21.1387042770371 [ 2.0237 1.6855 90 ]
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) -246.0 [1.0] / z(spectroscopic) -0.000820 [0.000003] / cz -245.90 [1.00]
   C 2012AJ....144....4M
Syntax of morphological type is : mtype quality bibcode
  • mtype : Hubble morphological class (spirals, ellipticals, etc)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the morphological type reference
Morphological type:
E5pec D 2013AJ....146...67B
Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode"
  • maj-axis : major axis size (arc minutes)
  • min-axis : minor axis size (arc minutes)
  • angle : orientation angle (in degrees)
  • (incl) : inclination (in units of 15° from 0 to 7)
  • (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam)
  • quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the angular size reference
Angular size (arcmin):
18.62 10.47 170 (Opt) D 2003A&A...412...45P
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 (6) :
B 8.92 [0.05] D 2007ApJS..173..185G
V 8.07 [0.07] D 2007ApJS..173..185G
G 15.1351 [0.0092] C 2018yCat.1345....0G
J 6.449 [0.029] C 2006AJ....131.1163S
H 5.865 [0.040] C 2006AJ....131.1163S
K 5.587 [0.045] C 2006AJ....131.1163S
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Some important notes on this object about identifications and objects associations.
notes:


Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 5
The count displayed here is the number of children objects.
The list obtained by clicking the button may be larger, as some children may be linked with different references or probability.

%This number is the number of distinct objets linked, by using this button, you will obtain all links (may be more than one) from that object to his children

: 286
: 105 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (17) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

M 110 MCG+07-02-014 Z 0037.6+4125 [SLK2004] 93
IRAS 00376+4124 NGC 205 [CHM2007] LDC 31 J004022.07+4141070 Gaia DR2 381334757352292096
ISOSS J00403+4140 UGC 426 [CHM2007] HDC 29 J004022.07+4141070
LEDA 2429 UZC J004022.0+414107 [FWB89] Galaxy 7
2MASX J00402207+4141070 Z 535-14 [M98c] 003738.7+412444

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References (1183 between 1850 and 2019) (Total 1183)
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


distance : 7    velocities : 11   

   

Observing logs


ISO : 2    XMM : 1    herschel : 7    IUE : 11   

   


External archives :

Data at NED - NASA/IPAC Extragalactic Database : M 110

Link by name to the catalogue in VizieR :

IRAS 00376+4124 2MASX J00402207+4141070 NGC 205 UGC 426 Gaia DR2 381334757352292096

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2019.10.20-12:25:41

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