1997A&A...320...79M

Query : 1997A&A...320...79M

1997A&A...320...79M - Astronomy and Astrophysics, volume 320, 79-90 (1997/4-1)

Mass-luminosity relation of low mass stars.

MALKOV O.Y., PISKUNOV A.E. and SHPIL'KINA D.A.

Abstract (from CDS):

The data on dynamic masses and multicolor photometry of 56 M-type components of binary/multiple systems was collected. Critical evaluation of late type stars bolometric correction scales have been performed. Our refined and reduced data is compared with published empirical and theoretical mass-luminosity relations. Our data does not exclude the existence of a step-like feature at MV=12mag. The best agreement between observations and theoretical models is found for recent calculations of D'Antona & Mazzitelli (1994ApJS...90..467D) with Alexander opacities. We conclude that present-day knowledge of the mass-luminosity relation at faintest magnitudes is not sufficient for making definite conclusions on the initial mass function of low mass stars.

Abstract Copyright: ∼

Journal keyword(s): low mass stars - stars: fundamental parameters - stars: luminosity function, mass function

VizieR on-line data: <Available at CDS (J/A+A/320/79): ref table2 table4 tables.tex>

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 G 202-45 SB* 16 24 09.3137145795 +48 21 11.107573476   12.099       M3.0V 182 1

Query : 1997A&A...320...79M

Basic data :
G 202-45 -- Spectroscopic Binary
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: 		* (2014AJ,HIP,...), PM* (2013MNRAS,Ci,...), ** (2001AJ,**,...), SB* (2004A&A,SBC9), UV (2016ApJ), NIR (2MASS), MIR (WISEA)
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) : 		16 24 09.3137145795 +48 21 11.107573476 (Optical) [ 0.4574 0.4657 90 ] A 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] : 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) : 		16 22 38.4571313755 +48 28 26.147283351 [ 0.4574 0.4657 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) : 		075.1957423138921 +44.0421901786972 [ 0.4574 0.4657 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 : 		1151.232 -499.079 [0.932 0.929 90] A 2018yCat.1345....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) -26.98 [0.0007] / z(spectroscopic) -0.000090 [0.000000] / cz -26.98 [0.00]
   (Opt) A 2018MNRAS.475.1960F
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): 		127.4785 [0.4818] A 2018yCat.1345....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: 		M3.0V C 2013AJ....145..102L
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 (8) :
B 12.099 [~] D 2012yCat.1322....0Z
G 9.253608 [0.003005] C 2020yCat.1350....0G
J 6.638 [0.024] C 2003yCat.2246....0C
H 6.141 [0.021] C 2003yCat.2246....0C
K 5.915 [0.023] C 2003yCat.2246....0C
g 11.033 [0.02] D 2012yCat.1322....0Z
r 9.725 [0.06] D 2012yCat.1322....0Z
i 8.597 [0.12] E 2012yCat.1322....0Z
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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The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!). sed-help-icon
Some important notes on this object about identifications and objects associations.
notes:

  • In the literature, GJ 623 A and GJ 623 B are WDS J16240+4822Aa and Ab, respectively.

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (45) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HIP 80346 G 202-45 LTT 14885 USNO-B1.0 1383-00279084
** HEN 1 GJ 623 B 2MASS J16240913+4821112 VVO 139
** BUP 168A GJ 623 A MCC 163 WDS J16240+4822Aa,Ab
AC +48 1595-89 GJ 623 NLTT 42730 WEB 13595
ASCC 335180 GSC 03495-00601 PLX 3733 WISEA J162410.51+482105.8
CCDM J16240+4821A HIC 80346 PLX 3733.00 Zkh 225
Ci 20 986 IDS 16212+4836 A PM 16226+4828 [RHG95] 2583
CSI+48-16226 Karmn J16241+483 PM J16241+4821 Gaia DR3 1411178510887026048
CSI+48-16227 LFT 1273 SBC9 1542 Gaia DR2 1411178510887026048
CSI+48 2399 2 LHS 417 TIC 162673762
GCRV 9443 L 1707-1 TYC 3495-601-1
GEN# +9.80202045 LSPM J1624+4821 UCAC4 692-054679

References (182 between 1850 and 2024) (Total 182)
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 : 8    distance : 1    ROT : 1    Fe_H : 4    PLX : 4    PM : 9    MK : 6   

   

Observing logs


herschel : 2    ISO : 4   

   

External archives :

Link by name to the catalogue in VizieR :

HIP 80346 CCDM J16240+4821A G 202-45 GJ 623 B GJ 623 A
GJ 623 GSC 03495-00601 HIC 80346 LHS 417 LSPM J1624+4821
2MASS J16240913+4821112 NLTT 42730 PLX 3733 TYC 3495-601-1 UCAC4 692-054679
USNO-B1.0 1383-00279084 WDS J16240+4822Aa,Ab WISEA J162410.51+482105.8 Gaia DR3 1411178510887026048 Gaia DR2 1411178510887026048

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