2000MNRAS.317..687T

Query : 2000MNRAS.317..687T

2000MNRAS.317..687T - Mon. Not. R. Astron. Soc., 317, 687-696 (2000/September-3)

Angular diameter and effective temperature of a sample of 15M giants at 2.2µm from lunar occultation observations.

TEJ A. and CHANDRASEKHAR T.

Abstract (from CDS):

High angular resolution measurements of a sample of 15M giants at 2.2µm by the technique of lunar occultation are presented in this paper. We obtain angular diameters for 11 sources of which five are the first diameter measurements. For these resolved sources we have estimated the effective temperatures, which are consistent with previous calibrations. For the other four sources we put the first upper limits on their angular sizes to be 2mas. Two sources, namely IRC+20090 and IRC+20067, yield appreciably low temperatures, which could point to their possible Mira nature. For sources with Hipparcos parallax measurements, we have calculated the linear radii.

Abstract Copyright: 2000, Royal Astronomical Society

Journal keyword(s): occultations - stars: fundamental parameters - stars: late-type

Simbad objects: 15

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Number of rows : 15
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 HD 17973 No* 02 53 38.4814287600 +14 40 12.916420212   8.4 7.56 6.7   ~ 19 0
2 HD 18310 V* 02 56 52.1584988952 +14 36 34.533282672   9.5 8.78 7.9   M4 18 0
3 V* ST Ari AB* 03 10 07.8696559512 +13 27 13.264297092   11.28 9.66     M4 18 0
4 HD 285268 * 03 53 54.8886763752 +15 36 41.536309572   10.84 9.12     K7 13 0
5 HD 285977 LP? 04 43 59.4934100544 +17 57 50.710757760   11.11 9.21     K0 11 0
6 V* DV Tau AB* 05 31 06.3317305968 +18 33 37.940871780   9.97 8.66     M6 26 0
7 V* FX Cnc LP* 08 48 39.5377407648 +12 32 48.998224212 10.14 8.28 6.61     M3II-III 50 0
8 * eps Leo V* 09 45 51.0736168507 +23 46 27.313597604 4.23 3.79 2.98 2.36 1.93 G1IIIa 354 0
9 V* EV Vir LP* 14 13 09.7752371328 -13 51 35.751630420   8.43 6.88     M4-M4.5II-III 56 0
10 V* MZ Vir LP* 14 19 14.8784913984 -14 24 28.487601504   9.03 7.49     M2/3III 23 0
11 V* FY Lib AB* 14 57 46.5477035016 -12 26 15.326281032   8.63 7.23     M5III 62 0
12 HD 142521 AB* 15 55 37.4401350912 -18 47 27.917208240   10.16 8.66     M4III 11 0
13 IRC -20444 Mi* 18 11 57.8800734552 -18 52 12.885737844     12.5     M9 22 0
14 IRC -20470 * 18 22 40.2092305584 -19 23 33.289177308     12.5     M7 10 0
15 HD 212062 AB* 22 21 41.8004610645 -07 36 30.070524734   10.07 8.81     M7- 51 0

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