II/220 Polarisation of Be stars (McDavid, 1986-1999)
Polarisation of Be stars
McDavid D.
<Publ. Astron. Soc. Pacific 98, 572 (1986); 102, 773 (1990);
106, 949 (1994); 111, 494 (1999)>
=1986PASP...98..572M 1986PASP...98..572M
=1990PASP..102..773M 1990PASP..102..773M
=1994PASP..106..949M 1994PASP..106..949M
=1999PASP..111..494M 1999PASP..111..494M
ADC_Keywords: Stars, Be ; Stars, variable ; Polarization
Description:
The catalogue contains observations of the linear polarization in
the UBVRI photometric system of 8 Northern Be stars; the observations
are part of a long-term monitoring program begun in 1984.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
stars.dat 67 10 Standard and Program Be stars
hr1035.dat 65 65 Polarization of 2H Cam (standard star)
hr6081.dat 65 65 Polarization of ο Sco (standard star)
hr0264.dat 65 65 Polarization of γ Cas
hr0496.dat 65 65 Polarization of φ Per
hr1273.dat 65 65 Polarization of 48 Per
hr1910.dat 65 65 Polarization of ζ Tau
hr5941.dat 65 65 Polarization of 48 Lib
hr6118.dat 65 65 Polarization of χ Oph
hr8539.dat 65 65 Polarization of π Aqr
hr8762.dat 65 65 Polarization of ο And
--------------------------------------------------------------------------------
See also:
ftp://www.limber.org/pub/uva/dmcdpol.pdf : David McDavid's PhD
dissertation "Polarimetry of Early Emission-Line Stars"
(Amsterdam Univ., 29 May 2001)
Byte-by-byte Description of file: stars.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1 A1 --- ps [p/s] Program or Standard star
3- 9 A7 --- Name Star name
11- 16 I6 --- HD HD (Cat. III/135) catalog number
18- 21 I4 --- HR BS (Cat. V/50) catalog number
23- 26 F4.2 mag Vmag Visual magnitude (BSC4, See Cat. V/50)
28- 29 I2 h RAh Right Ascension J2000 (hours)
31- 32 I2 min RAm Right Ascension J2000 (minutes)
34- 37 F4.1 s RAs Right Ascension J2000 (seconds)
39 A1 --- DE- Declination J2000 (sign)
40- 41 I2 deg DEd Declination J2000 (degrees)
43- 44 I2 arcmin DEm Declination J2000 (minutes)
46- 47 I2 arcsec DEs Declination J2000 (seconds)
49- 63 A15 --- Sp MK Spectral type (1)
65- 67 I3 km/s vsini *? projected rotational velocity (1)
--------------------------------------------------------------------------------
Note (1): According to Slettebak, A. 1982ApJS...50...55S 1982ApJS...50...55S
(for program stars only)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: hr*.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 F7.2 yr Year Year of observation
9 A1 --- Filter [UBVRI] Filter system passband (1)
11- 12 I2 --- nobs ? Number of observations
14- 18 F5.2 % q ? Mean normalized Stokes parameter q
20- 23 F4.2 % e_q ? rms uncertainty on q
25- 29 F5.2 % u ? Mean normalized Stokes parameter u
31- 34 F4.2 % e_u ? rms uncertainty on u
36- 39 F4.2 % p Mean degree of polarization
41- 44 F4.2 % e_p ? rms uncertainty on p
46- 50 F5.1 deg theta Mean equatorial position angle
52- 55 F4.1 deg e_theta ? rms uncertainty on theta
57- 60 F4.2 % dpi ? Instrumental precision of q, u, or p
62- 65 F4.1 deg dthetai ? Instrumental precision of theta
--------------------------------------------------------------------------------
Note (1): the filters (effective wavelength and passbands in nm) are:
-------------
EffL FWHM
-------------
U 365 70
B 440 100
V 550 90
R 640 150
I 790 150
-------------
--------------------------------------------------------------------------------
Author's Address:
McDavid D. mcdavid(at)limber.org
Limber Observatory, Timber Creek Road, P.O. Box 63599,
Pipe Creek,Texas 78063
(End) D. McDavid [Limber Observatory, Texas] 19-Feb-1999