2000MNRAS.313..547A

Query : 2000MNRAS.313..547A

2000MNRAS.313..547A - Mon. Not. R. Astron. Soc., 313, 547-552 (2000/April-2)

Towards the solution of the λ Bootis problem.

ANDRIEVSKY S.M. and PAUNZEN E.

Abstract (from CDS):

Having analysed the accretion-based model of the dust-gas separation, which is regarded to be the most promising for the explanation of the anomalous properties of λ Bootis-type stars, we can conclude that: (i) for any reasonable density profiles of the shell, dust grains appear to be decoupled from the gaseous background within the region where the temperature drops to a value that is less than the condensation temperature of heavy elements such as Mg, Ca, Fe, etc; (ii) most likely, in the shell of λ Bootis-type stars only small dust particles (of less than ~10–6cm in size) can be created; (iii) significant alteration of the initial atmospheric chemical composition can take place in the case when the density in the shell changes as ∼r–2.

Abstract Copyright: 2000, Royal Astronomical Society

Journal keyword(s): stars: chemically peculiar - circumstellar matter - stars: individual: λ Bootis

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 - 2026 		#notes
1 * lam Boo dS* 14 16 23.0184083839 +46 05 17.895459693 4.31 4.26 4.18 4.16 4.13 A0Va_lB 362 0

Query : 2000MNRAS.313..547A

Basic data :
* lam Boo -- delta Sct Variable
Other object types: otypes_help 		* (*,AG,...), PM* (2016ApJ,LSPM,...), MIR (AKARI,WISEA,...), IR (IRAS,[DML87]), dS* (2013A&A), UV (TD1), NIR (2MASS)
ICRS coord. (ep=J2000) : 		14 16 23.0184083839 +46 05 17.895459693 (Optical) [ 0.1039 0.1290 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		14 14 28.9713596525 +46 19 01.963236376 [ 0.1039 0.1290 90 ]
Gal coord. (ep=J2000) : 		086.9803799089722 +64.6661808067654 [ 0.1039 0.1290 90 ]
Proper motions mas/yr : 		-187.698 159.309 [0.122 0.146 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -1.66 [0.32] / z(spectroscopic) -0.000006 [0.000001] / cz -1.66 [0.32]
   (Opt) A 2022yCat.1355....0G
Parallaxes (mas): 		32.5885 [0.1410] A 2020yCat.1350....0G
Spectral type: 		A0Va_lB C 1987ApJS...65..581G
Fluxes (9) :
U 4.31 [~] C 2002yCat.2237....0D
B 4.26 [~] C 2002yCat.2237....0D
V 4.18 [~] C 2002yCat.2237....0D
R 4.16 [~] C 2002yCat.2237....0D
G 4.169045 [0.003073] C 2022yCat.1355....0G
I 4.13 [~] C 2002yCat.2237....0D
J 3.98 [0.30] D 2003yCat.2246....0C
H 4.03 [0.25] D 2003yCat.2246....0C
K 3.910 [0.036] C 2003yCat.2246....0C
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Identifiers (45) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* lam Boo HGAM 628 NLTT 36818 UBV M 20097
* 19 Boo HIC 69732 PLX 3246 USNO-B1.0 1360-00237162
AG+46 1040 HIP 69732 PLX 3246.00 uvby98 100125162
AKARI-IRC-V1 J1416229+460519 HR 5351 PMC 90-93 377 WEB 12142
ASCC 331916 IRAS 14144+4619 PPM 54024 WISEA J141622.78+460519.8
BD+46 1949 IRAS F14144+4619 ROT 2048 WISE J141622.59+460518.9
FK5 527 JP11 2493 SAO 44965 [DML87] 343
GC 19273 LSPM J1416+4605 SKY# 26046 Gaia DR2 1505311442256006912
GCRV 8355 LTT 14190 TD1 17373 Gaia DR3 1505311446553172992
GEN# +1.00125162 2MASS J14162308+4605177 TIC 168708816
GJ 3837 N30 3235 TYC 3472-1264-1
HD 125162 NAME-IAU Xuange UBV 12565

References (362 between 1850 and 2026) (Total 362)
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 Description of Measurements

Velocities : 8    Diameter : 1    Distance : 2    Rot : 12    Fe/H : 5    Plx : 5    PM : 9    SpT : 11   

   

Observing logs
Herschel : 5    ISO : 4    IUE : 4   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : * lam Boo

Link by name to the catalogue in VizieR :

AG+46 1040 AKARI-IRC-V1 J1416229+460519 BD+46 1949 FK5 527 GJ 3837
HD 125162 HIC 69732 HIP 69732 HR 5351 IRAS 14144+4619
IRAS F14144+4619 LSPM J1416+4605 2MASS J14162308+4605177 NLTT 36818 PLX 3246
PPM 54024 SAO 44965 TD1 17373 TYC 3472-1264-1 USNO-B1.0 1360-00237162
uvby98 100125162 WISEA J141622.78+460519.8 WISE J141622.59+460518.9 [DML87] 343 Gaia DR2 1505311442256006912
Gaia DR3 1505311446553172992

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