1999AJ....118.1061G

Query : 1999AJ....118.1061G

1999AJ....118.1061G - Astron. J., 118, 1061-1072 (1999/August-0)

Near-simultaneous spectroscopic and broadband polarimetric observations of Be stars.

GHOSH K., IYENGAR K.V.K., RAMSEY B.D. and AUSTIN R.A.

Abstract (from CDS):

Near simultaneous optical spectroscopic (on four nights) and broadband linear continuum (B, V, R, and I bands) polarimetric (on seven nights) observations of 29 Be stars were carried out during 1993November-December. The program Be stars displayed wavelength dependence of intrinsic polarizations with no frequency dependence of polarimetric position angles. Some of the Be stars displayed long-term polarization variability. The Be and Be-shell stars could not be distinguished from one another solely on the basis of their polarization values. Full widths at half-maximum of the Hα profiles and the intrinsic linear continuum polarizations are closely correlated with the projected rotational velocities of the program stars. Photospheric-absorption-corrected equivalent widths of Hα profiles [W(α)] and the radii of Hα-emitting or -absorbing envelopes (Re or R_a_) are nonlinearly correlated with the intrinsic continuum polarizations of these stars. However, W(α) and Re are linearly correlated. With large uncertainties, there is a trend of spectral dependence of polarization. Detailed discussion of these results is presented in this paper.Key words:

Abstract Copyright: ∼

Journal keyword(s): Stars: Emission-Line, Be - Techniques: Polarimetric - Techniques: Spectroscopic

Simbad objects: 29

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Number of rows : 29
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 * 10 Cas Be* 00 06 26.5373262768 +64 11 46.168691820 5.37 5.56 5.59     B9IIIe 118 0
2 * gam Cas HXB 00 56 42.5310945 +60 43 00.264089 1.18 2.29 2.39 2.32 2.40 B0.5IVpe 1253 0
3 * phi Per Be* 01 43 39.6379691568 +50 41 19.433124998 3.10 4.02 4.06 3.90 3.88 B1.5V:e-shell 594 0
4 HD 18552 Be* 03 00 11.8861086336 +38 07 54.197462964 5.67 6.05 6.11     B7IVe 94 0
5 HD 21641 Be* 03 31 33.1364138952 +47 51 44.700443460 6.47 6.733 6.763     B8.5V 115 0
6 * psi Per Be* 03 36 29.3797327450 +48 11 33.484405927 3.60 4.17 4.23     B5Ve 431 0
7 HD 22780 Be* 03 41 07.8571995216 +37 34 48.707896728 5.09 5.50 5.57     B7Vn 101 0
8 * 13 Tau Be* 03 42 18.9476782488 +19 42 00.918475956 5.41 5.68 5.69     B7Ve 107 0
9 * c Per Be* 04 08 39.6935695869 +47 42 45.038007366 3.45 4.00 4.03 3.91 3.93 B3Ve 394 0
10 * 228 Eri Be* 04 29 06.9254098152 -13 02 54.127769208 4.45 5.23 5.41 5.46 5.63 B2(V)ne 286 0
11 * 56 Eri Be* 04 44 05.3207274312 -08 30 12.852684720 4.97 5.75 5.81 5.72 5.74 B2(V)nne 186 0
12 * 105 Tau Be* 05 07 55.4349577176 +21 42 17.349368184 5.51 6.08 5.92     B2Ve 184 0
13 * psi01 Ori Be* 05 24 44.8273848312 +01 50 47.201915688 3.83 4.76 4.96 5.04 5.26 B1Vn 372 0
14 * zet Tau Be* 05 37 38.6854231 +21 08 33.158804 2.22 2.84 3.03 3.06 3.15 B1IVe_shell 751 0
15 * alf Col Be* 05 39 38.9410319 -34 04 26.794991 2.10 2.53 2.65 2.65 2.74 B9Ve 251 0
16 HD 41335 Be* 06 04 13.5003372120 -06 42 32.225392980 4.31 5.14 5.21 5.13 5.09 B1V 314 0
17 HD 42054 Em* 06 07 03.6694879368 -34 18 43.279841124 5.14 5.709 5.836     B5Ve 80 0
18 HD 43285 Be* 06 15 40.1766992112 +06 03 58.206616128 5.42 5.94 6.07     B6Ve 115 0
19 HD 43544 Be* 06 16 07.6914321072 -16 37 04.823463504 4.98 5.75 5.91 5.95 6.08 B2/B3Ve 94 0
20 HD 44506 Be* 06 20 36.2397908688 -34 08 38.916868416 4.46 5.336 5.521     B3V 82 0
21 * nu. Gem Be* 06 28 57.7861342 +20 12 43.685624 3.51 4.00 4.14 4.17 4.28 B6IVe 269 0
22 HD 47054 Be* 06 36 35.3296522656 -05 12 40.103033112 5.05 5.44 5.52     B8IVe 108 0
23 * 10 CMa Be* 06 44 28.4671043496 -31 04 13.892357820 4.18 5.08 5.17 5.15 5.17 B2V 150 0
24 * 27 CMa Be* 07 14 15.2117197408 -26 21 09.028965559 3.76 4.45 4.65 4.64 4.73 B4Ve_sh 240 0
25 * bet CMi Be* 07 27 09.0417373 +08 17 21.536745 2.52 2.80 2.89 2.90 2.96 B8Ve 400 0
26 * I Hya Be* 09 41 17.0067101149 -23 35 29.451517089 4.07 4.65 4.76 4.75 4.84 B5V 182 0
27 * omi And Be* 23 01 55.2649954408 +42 19 33.655865640 3.00 3.53 3.62 3.61 3.69 B6IV/V_sh 437 0
28 * bet Psc Be* 23 03 52.6132153632 +03 49 12.164302217 3.90 4.40 4.52 4.54 4.67 B6Ve 259 0
29 HD 224544 Be* 23 58 49.2357605112 +32 22 54.145033284 5.84 6.395 6.515     B6IVe 72 0

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