2006A&A...445.1165N

Query : 2006A&A...445.1165N

2006A&A...445.1165N - Astronomy and Astrophysics, volume 445, 1165-1168 (2006/1-3)

The FERRUM project: improved experimental oscillator strengths in CrII.

NILSSON H., LJUNG G., LUNDBERG H. and NIELSEN K.E.

Abstract (from CDS):

We report absolute oscillator strengths for 119 CrII transitions in the wavelength region 2050-4850Å. The transition probabilities have been derived by combining radiative lifetimes, measured with time-resolved laser induced fluorescence, and branching fractions from intensity calibrated Fouirer transform spectrometer data. New radiative lifetimes for the 3d4(5D)4p 4F, 4D and 6P terms are reported, adding up to a total of 25 energy levels with measured lifetimes used to derive this improved set of atomic data.

Abstract Copyright: ∼

Journal keyword(s): atomic data - line: identification

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 * 17 Com a2* 12 28 54.7022406648 +25 54 46.265813136   5.208 5.236     B9VCrEu 279 0

Query : 2006A&A...445.1165N

Basic data :
* 17 Com -- alpha2 CVn 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: 		a2* (), * (2020A&A,*,...), ** (ADS,CCDM,...), Pe* (2022ApJS), V* (V*), NIR (2MASS), Opt (LAMOST)
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) : 		12 28 54.7022406648 +25 54 46.265813136 (Optical) [ 0.1717 0.2555 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) : 		12 26 24.9632471229 +26 11 21.806849722 [ 0.1717 0.2555 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) : 		225.2237310514996 +84.8170807801829 [ 0.1717 0.2555 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 : 		-23.071 -15.110 [0.165 0.300 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) 0.66 [0.80] / z(spectroscopic) 0.000002 [0.000003] / cz 0.66 [0.80]
   (Opt) A 2022yCat.1355....0G
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): 		12.9991 [0.3721] 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: 		B9VCrEu D 2020A&A...640A..40H
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 5.208 [0.014] D 2000A&A...355L..27H
V 5.236 [0.009] D 2000A&A...355L..27H
G 5.241875 [0.003205] C 2022yCat.1355....0G
J 5.221 [0.020] C 2003yCat.2246....0C
H 5.297 [0.034] C 2003yCat.2246....0C
K 5.289 [0.017] C 2003yCat.2246....0C
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

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (47) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* 17 Com GCRV 7503 N30 2886 UBV M 41712
* 17 Com A GEN# +5.21110146 NAME ** STFA 21 uvby98 521110146
ADS 8568 A GSC 01989-03206 PLX 2876 V* AI Com
AG+26 1277 HD 108662 PLX 2876.00 WDS J12289+2555A
AP J12285470+2554463 HGAM 616 PPM 101928 WEB 10838
BD+26 2354 HIC 60904 Renson 31550 YPAC 513
CCDM J12289+2554A HIP 60904 ROT 3939 YZ 26 6133
Cl* Melotte 111 AV 1822 HR 4752 SAO 82330 [HFE83] 878
Cl* Melotte 111 BOU 42 IDS 12239+2628 A SKY# 23345 [SS59] I 291
Cl Melotte 111 146 JP11 5071 TIC 393808105 Gaia DR2 3960724252307181056
Cl Melotte 111 1464 LAMOST J122855.36+255446.3 TYC 1989-3206-1 Gaia DR3 3960724252307532672
GC 17012 2MASS J12285470+2554463 UBV 11213

References (279 between 1850 and 2024) (Total 279)
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 : 16    diameter : 1    distance : 3    ROT : 5    Fe_H : 5    PLX : 5    PM : 7    MK : 10   

   

Observing logs


IUE : 19   

   

External archives :

Link by name to the catalogue in VizieR :

AG+26 1277 AP J12285470+2554463 BD+26 2354 CCDM J12289+2554A GSC 01989-03206
HD 108662 HIC 60904 HIP 60904 HR 4752 2MASS J12285470+2554463
PLX 2876 PPM 101928 SAO 82330 TYC 1989-3206-1 uvby98 521110146
V* AI Com WDS J12289+2555A Gaia DR2 3960724252307181056 Gaia DR3 3960724252307532672

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