Properties of the Magellanic-type spirals. I. Surface photometry of NGC 4618 and NGC 4625

Journal Article · Fri Mar 01 00:00:00 EST 1991 · Astronomical Journal; (USA)

DOI:https://doi.org/10.1086/115728· OSTI ID:5701321

Odewahn, S C ^[1]

---

1. Texas Univ., Austin (USA)

CCD and photographic BVRI broadband surface photometric observations obtained at McDonald Observatory, Capilla Peak Observatory, Asiago Observatory, and with the 2.1-m Struve reflector during the period 1963-1990 are presented for the close pair of SBm galaxies NGC 4618 and NGC 4625. The data are presented in extensive contour maps, graphs, and tables and discussed in detail. Both galaxies are identified as Magellanic-type spirals, at a mean distance of 6.3 + or - 0.6 Mpc, with segmented radial luminosity profiles and evidence of significant massive star formation in the dominant spiral arms. 41 refs.

• OSTI ID: 5701321
• Journal Information: Astronomical Journal; (USA), Vol. 101; ISSN 0004-6256
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GALAXIES
PHOTOMETRY
DATA
DISTANCE
LUMINOSITY
MAGELLANIC CLOUDS
MORPHOLOGY
STAR EVOLUTION
INFORMATION
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
640105* - Astrophysics & Cosmology- Galaxies