J/other/Ser/179.87 Hα in HII regions of Holmberg IX (Arbutina+, 2009)
Optical observations of M81 galaxy group in narrow band [SII] and Hα
filters: Holmberg IX.
Arbutina B., Ilic D., Stavrev K., Urosevic D., Vukotic B., Onic D.
<Serbian Astron. Journal, 179, 87 (2009)>
=2009SerAJ.179...87A 2009SerAJ.179...87A
ADC_Keywords: Galaxies, nearby ; H II regions
Keywords: ISM: supernova remnants - HII regions - methods: observational -
techniques: photometric - galaxies: ISM -
galaxies: individual: Holmberg IX
Abstract:
We present observations of the nearby tidal dwarf galaxy Holmberg IX
in M81 galaxy group in narrow band [SII] and Hα filters, carried
out in March and November 2008 with the 2m RCC telescope at NAO
Rozhen, Bulgaria. Our search for resident supernova remnants
(identified as sources with enhanced [SII] emission relative to their
Hα emission) in this galaxy yielded no sources of this kind,
besides M&H 10-11 or HoIX X-1. Nevertheless, we found a number of
objects with significant Hα emission that probably represent
uncatalogued HII regions.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 47 22 HII regions in Holmberg IX
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- Source Name of HII source
8 A1 --- n_Source [a] a: Possible hypernova remnant or
super-shell
10- 11 I2 h RAh Right ascension (J2000)
13- 14 I2 min RAm Right ascension (J2000)
16- 19 F4.1 s RAs Right ascension (J2000)
22 A1 --- DE- Declination sign
23- 24 I2 deg DEd Declination (J2000)
26- 27 I2 arcmin DEm Declination (J2000)
29- 30 I2 arcsec DEs Declination (J2000)
33- 37 F5.2 aW/m2 FHa Hα flux (aW/m2=10-15erg/cm2/s)
40- 47 A8 --- MH Source name from Miller & Hodge
(1994ApJ...427..656M 1994ApJ...427..656M),
[MH94a] Ho IX NN in Simbad
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Table 6: Additional sources
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Source RA (J2000) DE Type
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Aea*1 09 57 30.3 +69 02 52 HII/SNR
Aea*2 09 58 04.0 +69 03 16 HII
Aea? 09 57 30.9 +69 01 12 Unknown
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Acknowledgements:
Bojan Arbutina, Dept. of Astronomy, Univ. of Belgrade, arbo(at)matf.bg.ac.rs
(End) Bojan Arbutina [Belgrade], Patricia Vannier [CDS] 29-Dec-2009