1997A&A...325.1083P

Query : 1997A&A...325.1083P

1997A&A...325.1083P - Astronomy and Astrophysics, volume 325, 1083-1087 (1997/9-3)

The luminosity of the Hα-emission envelopes of variable Is(A)-type stars.

PUGACH A.F. and KOVALCHUK G.U.

Abstract (from CDS):

We present the results of the analysis of the emission spectra of variable Is(A)-type stars. Sixteen stars have been observed in 1988-1992 at the 6-m telescope of Special Astrophysical Observaroty, Russian Academy of Sciences (SAO RAS) with the middle-resolution (R≃3000) echelle spectrograph ``Zebra". Equivalent widths of the Hα and Hβ (if available) emission components were obtained, the underlying profile of the corresponding absorption lines were taken into account. The luminosities of the emission envelopes in the Hα and Hβ lines were then calculated. The main result of the investigation is that the luminosity of the emission envelope appears to depend on the effective temperature of the star.

Abstract Copyright: ∼

Journal keyword(s): stars: early type - stars: emission line - stars: variables: other - stars: pre main-sequence

Simbad objects: 21

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Number of rows : 21
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 V* VX Cas Ae* 00 31 30.6818495040 +61 58 50.984946300 11.83 11.59 10.50 11.19 10.94 A0Vep 132 0
2 HD 278937 Y*O 03 40 46.9605708144 +32 31 53.715087444   10.66 10.40     A7III:kA2.5mA3e(r) 85 0
3 V* XY Per Ae* 03 49 36.3365862552 +38 58 55.548299928 12.12 10.14 9.58 9.54 8.40 A2II+B6 151 0
4 V* UX Ori Ae* 05 04 29.9878898040 -03 47 14.286732072 10.25 10.93 8.70 9.62 9.43 A4IVe 363 1
5 HD 287841 Y*O 05 24 42.8032369656 +01 43 48.249234516 10.55 10.45 10.17 9.99 9.80 A8V 110 0
6 V* CO Ori Or* 05 27 38.3386648 +11 25 38.974625 12.96 12.33 10.30 10.33 9.63 F7Ve 168 0
7 HD 244524 Ae* 05 31 26.7738677784 +11 01 22.543195944   9.63 9.48     B9e 25 0
8 V* HK Ori Ae* 05 31 28.049808 +12 09 10.30212 11.82 12.235 11.716 11.632 10.56 A2?e+G0?e 193 1
9 V* EZ Ori Or* 05 34 18.5664045960 -05 04 47.807028228     12.00   10.57 G4Ve 101 0
10 V* CQ Tau Ae* 05 35 58.4666264136 +24 44 54.091450572 11.290 10.780 10.000   8.33 F5IVe 310 0
11 V* BN Ori Ae* 05 36 29.3484433464 +06 50 02.169401568   10.04 8.80 9.59   F4e 65 0
12 HD 37258 Ae* 05 36 59.2496063912 -06 09 16.331028249   9.72 9.61 9.56   A3Ve 135 0
13 V* RR Tau Ae* 05 39 30.5115918672 +26 22 26.967444996 11.64 12.09 11.28 10.58 10.17 A0:IVe 225 0
14 V* V351 Ori Ae* 05 44 18.7949456328 +00 08 40.410217104 9.44 9.22 8.87     A7V 116 0
15 V* VV Ser Ae* 18 28 47.8620017808 +00 08 39.923474964 12.99 12.63 11.80 11.01 10.24 A5Ve 249 0
16 V* DD Ser Or* 18 41 13.1591957376 -01 58 05.431826676   11.02 10.67     A0 23 0
17 V* WW Vul Ae* 19 25 58.7494120560 +21 12 31.333658616 11.46 10.99 10.25 10.38 10.12 A2IVe 224 0
18 EM* LkHA 371 Ae* 20 47 23.5950146328 +43 44 39.740360748   13.79 12.90 13.76   A0/5 46 1
19 V* BH Cep Ae* 22 01 42.8723960712 +69 44 36.426918696 12.18 11.54 11.01 10.62 10.32 F5IIIe 64 0
20 V* BO Cep Ae* 22 16 54.0583196880 +70 03 44.988517332 11.86 11.98 11.55 11.16 10.84 F5Ve 71 0
21 V* SV Cep Ae* 22 21 33.2166238512 +73 40 27.097678812 11.40 11.25 10.35 10.28 10.08 A2IVe 130 0

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