A new distance criterion for spirals in the zone of avoidance.

Details A new distance criterion for spirals in the zone of avoidance. A new distance criterion for spirals in the zone of avoidance.

Feb 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997crasb.324..201d&link_type=abstract

Comptes Rendus de l'Academie des Sciences, Sér. II, Fasc. b, Tome 324, No. 3, p. 201 - 208

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Tully-Fisher Relation: Spiral Galaxies, Distance Indicators: Spiral Galaxies, Distance Indicators: Extragalactic

Scientific paper

The classical Tully-Fisher (TF) relation, used to derive distances of spiral galaxies, is not suitable in the zone of avoidance. It is shown that it is possible to use another form, the 21 cm Tully-Fisher relation (TF21), using only H I data. A 4867 galaxy KLUN sample (from Nançay observations, and LEDA database) allows to derive its slope, the zero point being fixed with a set of 18 primary calibrators. The TF21 relation appears usable to obtain distances in the zone of avoidance, and is expected to provide a competitive extragalactic distance indicator.

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