Markarian galaxies

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Sky plot showing locations of Markarian galaxies. White band is due to the Milky Way.

The Markarian galaxies are a class of galaxies that have nuclei with excessive amounts of ultraviolet emissions compared with other galaxies. Benjamin Markarian drew attention to these types of galaxies starting in 1963. The nuclei of the galaxies had a blue colour that in a star would be classed from A to F. This blue core did not match the rest of the galaxy. The spectrum in detail tends to show a continuum that Markarian concluded was produced non-thermally. Most of these have emission lines and are interesting because of their energetic activity.[1][2]

History[edit]

In 1964 Markarian decided to search for this kind of galaxy.[3] The First Byurakan Survey commenced in 1965 using the Schmidt telescope at the Byurakan Astrophysical Observatory. The telescope used a 132 cm mirror and 102 cm correcting plate. When this started it was the largest telescope to have a full aperture objective prism. The purpose of the survey was to find galaxies with an ultraviolet excess.[4] The optics used were corrected for blue violet. Prisms in this had a low dispersion of 180 nm/mm in order not to spread out the galactic core spectrum too much and confuse it with other objects. This permitted classification of galaxies with magnitudes down to 17.5.[3] Seventy galaxies with UV-continuum appeared on lists, and the term "Markarian galaxies" came into use.[3][5][6] Two more lists brought the number of galaxies up to 302 in 1969.[7][8] The FBS continued observations till 1978 with a full spectra survey at high galactic latitudes. 1980 saw the completion of plate analysis and picking the objects that would be included. Twelve more papers with objects from the First Byurakan Survey brought the list up to 1500 galaxies.[3][9][10][11][12][13][14][15][16][17][18][19][20]

A list titled First Byurakan Survey circulated in 1986 included the original 1500 galaxies and 32 extras numbered from 9001 to 9032.[21] In 1989 an extended list numbering up to 1515 was published.[3][22]

Characteristics[edit]

The catalogues of galaxies included a name, coordinates, spectral type, visible size and morphological type of galaxy.[3] A custom designator for the galaxy core of s for star-like or d for diffuse was used, with hybrids of ds or sd. A digit 1,2 or 3 indicated strong, moderate or weak UV emission. And a letter "e" was appended if emission lines were apparent. Unfortunately some eleven galaxies had a blue star in the foreground creating the ultraviolet excess, so these galaxies do not really fall into the class.[23] Another problem is duplicate entries where Mrk 107 is Mrk 20, Mrk 1318 is Mrk 49, and Mrk 890 is Mrk 503.[24]

The various objects in this catalogue include Seyfert galaxies, starburst galaxies, H II regions, active galactic nucleii, BL Lac objects and quasars.[23] Some objects are actually giant glowing regions of ionized hydrogen in a galaxy including Mrk 59, 71, 86b, 94, 256b, 404, 489b, 1039, 1236, 1315, and 1379a.[23] Other galaxies have black holes shooting hot gas in energetic jets. Many are variable, showing the brightness comes from a small region.

Translations to English[edit]

I 1-70 Galaxies with an ultraviolet continuum. I
II 71-200 Markaryan, B. E. (1971). "Galaxies with an ultraviolet continuum. II". Astrophysics 5 (3): 206. Bibcode:1969Ap......5..206M. doi:10.1007/BF01004709. 
III 201-302 Markaryan, B. E. (1972). "Galaxies with ultraviolet continuum. III". Astrophysics 5 (4): 286. Bibcode:1969Ap......5..286M. doi:10.1007/BF01003911. 
IV 303-401 markaryan, B. E.; Lipovetskii, V. A. (1974). "Galaxies with an ultraviolet continuum. IV". Astrophysics 7 (4): 299. Bibcode:1971Ap......7..299M. doi:10.1007/BF01003012. 
V 402-507 markaryan, B. E.; Lipovetskii, V. A. (1974). "Galaxies with ultraviolet continuum V". Astrophysics 8 (2): 89. Bibcode:1972Ap......8...89M. doi:10.1007/BF01002156. 
VI 508-604 Markaryan, B. E.; Lipovetskii, V. A. (1975). "Galaxies with ultraviolet continuum. VI". Astrophysics 9 (4): 283. Bibcode:1973Ap......9..283M. doi:10.1007/BF01002512. 
VII 605-700 Markaryan, B. E.; Lipovetskii, V. A. (1975). "Galaxies with ultraviolet continuum. VII". Astrophysics 10 (3): 185. Bibcode:1974Ap.....10..185M. doi:10.1007/BF01001549. 
VIII 701-797 Markaryan, B. E.; Lipovetskii, V. A. (1977). "Galaxies with an ultraviolet continuum. VIII". Astrophysics 12 (3): 241. Bibcode:1976Ap.....12..241M. doi:10.1007/BF01003320. 
IX 798-895 Markaryan, B. E.; Lipovetskii, V. A. (1977). "Galaxies with an ultraviolet continuum. IX". Astrophysics 12 (4): 429. Bibcode:1976Ap.....12..429M. doi:10.1007/BF01000934. 
X 896-995 Markaryan, B. E.; Lipovetskii, V. A.; Stepanyan, Dzh A. (1978). "Galaxies with ultraviolet continuum. X". Astrophysics 13 (2): 116. Bibcode:1977Ap.....13..116M. doi:10.1007/BF01005701. 
XI 996-1095 Markaryan, B. E.; Lipovetskii, V. A.; Stepanyan, Dzh A. (1978). "Galaxies with ultraviolet continuum. XI". Astrophysics 13 (3): 215. Bibcode:1977Ap.....13..215M. doi:10.1007/BF01001214. 
XII 1096-1194 Markaryan, B. E.; Lipovetskii, V. A.; Stepanyan, Dzh A. (1979). "Galaxies with ultraviolet continuum. XII". Astrophysics 15 (2): 130. Bibcode:1979Ap.....15..130M. doi:10.1007/BF01006033. 
XIII 1195-1302 Markaryan, B. E.; Lipovetskii, V. A.; Stepanyan, Dzh A. (1980). "Galaxies with ultraviolet continuum. XIII". Astrophysics 15 (3): 235. Bibcode:1979Ap.....15..235M. doi:10.1007/BF01004367. 
XIV 1303-1399 Markaryan, B. E.; Lipovetskii, V. A.; Stepanyan, Dzh A. (1980). "Galaxies with ultraviolet continuum. XIV". Astrophysics 15 (4): 363. Bibcode:1979Ap.....15..363M. doi:10.1007/BF01005372. 
XV 1400-1500 Markaryan, B. E.; Lipovetskii, V. A.; Stepanyan, Dzh A. (1982). "Galaxies with ultraviolet continuum. XV". Astrophysics 17 (4): 321. Bibcode:1981Ap.....17..321M. doi:10.1007/BF01004228. 

Gallery[edit]

References[edit]

  1. ^ Koioian, Gabriel; Dickinson, D. F.; Tovmassian, H.; Purton, C. R.; Sramek, R. A. (15 January 1976). "The Radio Spectra of Markarian Galaxies". Astrophysical Journal 203 (1): 323–328. Bibcode:1976ApJ...203..323K. doi:10.1086/154082. 
  2. ^ Markarian, Benjamin Y. (1963). Soobshcheniya Byurakan Observatory 34: 3. Bibcode:1963SoByu..34....3M. 
  3. ^ a b c d e f Markarian, B. E.; Lipovetskii, V. A.; Stepanian, J. A.; Erastova, L. K.; Shapovalova, A. I. (1989). The First Byurkan Survey: A Catalogue of Galaxies with UV-Continuum. Soobshcheniya Spetsial'noj Astrofizicheskoj Observatorii 62. p. 5. Bibcode:1989SoSAO..62....5M. 
  4. ^ Massaro, E.; Mickaelian, A.; Nesci, R.; Weedman, D. (2008). The Digitized First Byurakan Survey. ISBN 978-88-548-2421-8. 
  5. ^ Markarian, B. E. (1967). "Galaxies with an ultraviolet continuum". Astrofizika 3: 55. Bibcode:1967Afz.....3...55M. 
  6. ^ Markarian, B. E. (1968). Non-stable Phenomena in Galaxies. IAU Symposium No. 29. Yerevan: Publishing House of the Academy of Sciences of Armenian SSR. 
  7. ^ Markarian, Benjamin E. (1969). "Galaxies with ultraviolet continuum. I". Astrofizika 5: 443. Bibcode:1969Afz.....5..443M. 
  8. ^ Markarian, B. E. (1969). "Galaxies with ultraviolet continuum. II". Astrofizika 5: 581. Bibcode:1969Afz.....5..581M. 
  9. ^ Markarian, B. E.; Lipovetskii, V. A.; Lipovetskii, V. A. (1971). "Galaxies with ultraviolet continuum. IV". Astrofizika 7: 511. Bibcode:1971Afz.....7..511M. 
  10. ^ Markarian, B. E.; Lipovetskii, V. A. (1972). "Galaxies with ultraviolet continuum. V". Astrofizika 8: 155. Bibcode:1972Afz.....8..155M. 
  11. ^ Markarian, B. E.; Lipovetskii, V. A. (1973). "Galaxies with ultraviolet continuum. VI". Astrofizika 9: 487. Bibcode:1973Afz.....9..487M. 
  12. ^ Markarian, B. E.; Lipovetskii, V. A. (1974). "Galaxies with Ultraviolet continuum. VII". Astrofizika 10: 307. Bibcode:1974Afz....10..307M. 
  13. ^ Markarian, B. E.; Lipovetskii, V. A. (1976). "Galaxies with ultraviolet continuum. VIII". Astrofizika 12: 389. Bibcode:1976Afz....12..389M. 
  14. ^ Markarian, B. E.; Lipovetskii, V. A. (1976). "Galaxies with ultraviolet continuum. IX". Astrofizika 12: 657. Bibcode:1976Afz....12..657M. 
  15. ^ Markarian, B. E.; Lipovetskii, V. A.; Stepanian, J. A. (1977). "Galaxies with ultraviolet continua. X". Astrofizika 13: 225. Bibcode:1977Afz....13..225M. 
  16. ^ Markarian, B. E.; Lipovetskii, V. A.; Stepanian, J. A. (1977). "Galaxies with ultraviolet continuum. XI". Astrofizika 13: 397. Bibcode:1977Afz....13..397M. 
  17. ^ Markarian, B. E.; Lipovetskii, V. A.; Stepanian, J. A. (1979). "Galaxies with ultraviolet continuum. XII". Astrofizika 15: 201. Bibcode:1979Afz....15..201M. 
  18. ^ Markarian, B. E.; Lipovetskii, V. A.; Stepanian, J. A. (1979). "Galaxies with ultraviolet continuum. XIII". Astrofizika 15: 363. Bibcode:1979Afz....15..363M. 
  19. ^ Markarian, B. E.; Lipovetskii, V. A.; Stepanian, J. A. (1979). "Galaxies with ultraviolet continuum. XIV". Astrofizika 15: 549. Bibcode:1979Afz....15..549M. 
  20. ^ Markarian, B. E.; Lipovetskii, V. A.; Stepanian, J. A. (1981). "Galaxies with ultraviolet continuum. XV". Astrofizika 17: 619. Bibcode:1981Afz....17..619M. 
  21. ^ Lipovetskii, V. A.; Stepanian, J. A. (1986). "First Byurakan Survey". unpublished. 
  22. ^ "Frequently Asked Questions: NED and other catalogs". 29 May 2009. Retrieved 10 December 2011. 
  23. ^ a b c "The Data". Atlas and Database of Markarian Galaxies - Petrosian et al. Retrieved 11 December 2011. 
  24. ^ Petrosian. "The Optical Database". Retrieved 11 December 2011. 

External links[edit]