J/A+A/546/A77 Hα images of HD93521 (Rauw+, 2012)
The nature of the high Galactic latitude O-star HD93521: new results from
X-ray and optical spectroscopy.
Rauw G., Morel T., Palate M.
<Astron. Astrophys. 546, A77 (2012)>
=2012A&A...546A..77R 2012A&A...546A..77R
ADC_Keywords: Stars, O ; Photometry, H-alpha
Keywords: stars: early-type - stars: fundamental parameters -
stars: abundances - stars: massive - stars: individual: HD93521 -
X-rays: stars
Abstract:
Owing to its unusual location and its isolation, the nature of the
high Galactic latitude O9.5 Vp object HD 93521 is still uncertain.
We have collected X-ray and optical observations to characterize the
star and its surroundings.
Description:
The best quality H-alpha images of the field around HD93521 are
provided. These data were obtained by amateur astronomer Gaston Dessy
(member of the Society Astronomique de Liege, Belgium) with a TMB-92
9.2cm refractor. The first image (haskyco1.fit) was taken with an Atik
16IC CCD and is the combination of 15 individual 5min exposures. The
field of view covers 41x30.8-arcmin squared. HD93521 and BD+38 2183
are located on the pixels (328, 230) and (218, 390) respectively. A
flat sky background was subtracted.
The second image (haskyco2.fit) was taken with an Atik 4000M CCD and
is the combination of 12 individual 5min exposures. The field of view
covers 127.7x127.7arcmin squared. HD93521 and BD+38 2183 are
located on the pixels (1109, 1545) and (989, 1385) respectively. A
flat sky background was subtracted.
Objects:
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RA (2000) DE Designation(s)
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10 48 23.51 +37 34 13.1 HD93521 = BD+38 2179
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
images.dat 70 2 List of FITS images
fits/* . 2 FITS images
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Byte-by-byte Description of file: images.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Right Ascension of center (J2000)
4- 5 I2 min RAm Right Ascension of center (J2000)
7- 12 F6.3 s RAs Right Ascension of center (J2000)
14 A1 --- DE- Declination sign (J2000)
15- 16 I2 deg DEd Declination of center (J2000)
18- 19 I2 arcmin DEm Declination of center (J2000)
21- 25 F5.2 arcsec DEs Declination of center (J2000)
28- 31 I4 pix Nx Number of pixels along X-axis
32 A1 --- --- [x]
33- 36 I4 pix Ny Number of pixels along Y-axis
38- 49 A12 --- FileName Name of FITS file in subdirectory fits
51- 70 A20 --- Title Title of the file
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Acknowledgements:
Gregor Rauw, rauw(at)astro.ulg.ac.be
(End) Patricia Vannier [CDS] 24-Sep-2012