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J/A+AS/117/1        Galaxies in the "zone of avoidance". II. (Seeberger+, 1996)

Penetrating the "zone of avoidance". II. Optically detected galaxies in the region 180 ≤ l ≲ 240 Seeberger R., Saurer W., Weinberger R. <Astron. Astrophys. Suppl. Ser. 117, 1 (1996)> =1996A&AS..117....1S (SIMBAD/NED BibCode)
ADC_Keywords: Galaxy catalogs ; Cross identifications Keywords: catalogs and dictionaries - galaxies: general - interstellar medium: extinction - Universe (the): structure of Description: We have carried out a systematic search for galaxies in the galactic plane in a ten degree wide strip (-5deg≤b≤+5deg). In an area of 300 square degrees between l=180deg and l=210deg, 755 galaxies have been detected on Palomar red- sensitive prints. The smallest galaxies show diameters of 0.1mm corresponding to 6.7". We extended our survey to δ=-27deg i.e. l≃247deg to check our catalogue for completeness by comparing it with the Saito et al. (1990, 1991) catalogues of galaxies and present 334 new galaxy candidates at l≥210deg. An asymmetry with respect to the galactic equator is obvious. By assuming the 60µ and 100µ sky flux density to be a rough measure of the total interstellar galactic extinction, and comparing them with the surface densities of the galaxies, we detected one possible galaxy cluster candidate at (l,b)≃(181.5deg+3.5deg), a concentration of galaxies at (l,b)≃(195deg+4.5deg), and confirmed three other galaxy concentrations. Finally, we argue that the red-sensitive surveys (ESO R; POSS II-R, POSS II-IR) are the best suitable material for galaxy searches in the zone of avoidance. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2 135 755 Optically detected galaxies in the region 180 < l < 210, |b| < 5 table3 205 334 Optically detected galaxies in the region 210 < l < 250, |b| < 5
See also: J/A+AS/110/269 : Part I, |b|=5 J/A+AS/117/369 : Part III, 120<l<130, |b|<10 J/A+AS/126/247 : Part IV, 130<l<180, |b|<5 J/A+AS/127/101 : Part V, 90<l<110, |b|<10 Byte-by-byte Description of file: table2 table3
Bytes Format Units Label Explanations
1- 13 A13 --- Name Name based on galactic position 15- 16 I2 h RAh Right ascension B1950 18- 19 I2 min RAm Right ascension B1950 21- 22 I2 s RAs Right ascension B1950 24 A1 --- DE- Declination sign 25- 26 I2 deg DEd Declination B1950 28- 31 F4.1 arcmin DEm Declination B1950 34- 35 I2 h RAh2000 Right ascension J2000 37- 38 I2 min RAm2000 Right ascension J2000 40- 41 I2 s RAs2000 Right ascension J2000 44 A1 --- DE-2000 Declination sign 45- 46 I2 deg DEd2000 Declination J2000 48- 51 F4.1 arcmin DEm2000 Declination J2000 53- 56 I4 --- POSS POSS print number 58- 62 F5.1 mm Xpos Cartesian x-coordinate on POSS 64- 68 F5.1 mm Ypos Cartesian y-coordinate on POSS 70- 73 F4.2 arcmin Diam1 Maximum diameter on POSS-E 75- 78 F4.2 arcmin Diam1c ? Maximum diameter of the core on POSS-E 80- 83 F4.2 arcmin Diam2 ? Maximum diameter on POSS-O 85- 88 F4.2 arcmin Diam2c ? Maximum diameter of the core on POSS-O 89 A1 --- u_Diam2c [?] Uncertainty flag on Diam2c 90- 92 A3 --- MType Morphological type 94-135 A42 --- Rem Cross-identifications and remarks
Courtesy: W. Saurer,
(End) Francois Ochsenbein [CDS] 20-Dec-1995
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