NGC 3034 - I0 sp

NGC 3034

De Vaucouleurs Atlas Type: I0 sp

Filter: B

Telescope: MLO 1.0-m
North up , East left
Field Dimensions: 10.4 x 7.8 arcminutes

RC3 Type: I0 sp
RSA Type: Amorphous
Surface Brightness Range Displayed: 18.0-26.0 mag per square arcsec
Absolute Blue Magnitude: -19.6

De Vaucouleurs Atlas Description:

M82 is the prototype of the non-magellanic (or Irr II) irregular galaxy. The morphology of the galaxy is characterized by an irregular, dusty shape with discrete star-forming regions, filaments, and a generally smooth background of light that spectroscopically is dominated by A stars (Sandage and Brucato 1979). M82 is a member of the Amorphous class of Sandage and Brucato, and has been the subject of many studies, most of which have focussed on the extreme starburst and the infrared emission and gaseous outflow connected with the large number of massive stars formed in the starburst . Particularly interesting is the discovery of possible spiral arms in near-IR images of M82 (Mayya, Carrasco, and Luna 2005). These arms appear to break from the ends of a near-IR bar (Telesco et al. 1991). Interestingly, de Vaucouleurs (1959a) suspected that M82 is the ``broad-side, nearly edge-on view of the bar and lens of an armless SB(s)0/a object." He based this interpretation on other galaxies, such as NGC 4691 , which were more face-on but showed bars that looked like M82 .