High-resolution optical surface photometry of M31

1982 ◽  
Vol 87 ◽  
pp. 264 ◽  
Author(s):  
P. W. Hodge ◽  
R. C. Kennicutt
Keyword(s):  
High Resolution ◽  
Surface Photometry ◽  
Optical Surface

Optical Surface Photometry of a Sample of Disk Galaxies. I. Observations and Data Reduction

2000 ◽  
Vol 119 (4) ◽  
pp. 1638-1644 ◽  
Author(s):  
J. A. L. Aguerri ◽  
A. M. Varela ◽  
M. Prieto ◽  
C. Muñoz-Tuñón
Keyword(s):  
Data Reduction ◽  
Disk Galaxies ◽  
Surface Photometry ◽  
Optical Surface

scholarly journals High-Resolution B-Photometry of the Milky Way and Results on Galactic Structure

1990 ◽  
Vol 139 ◽  
pp. 205-206
Author(s):  
S. Kimeswenger ◽  
W. Schlosser ◽  
K. J. Seidensticker ◽  
B. Hoffmann ◽  
Th. Schmidt-Kaler
Keyword(s):  
High Resolution ◽  
Milky Way ◽  
Galactic Structure ◽  
Surface Photometry ◽  
High Resolution Data ◽  
V Band ◽  
The Galaxy ◽  
Global Parameters ◽  
Pioneer 10 ◽  
Resolution Data

During the last two decades, many attempts were made to determine the global parameters of the Galaxy and to compare the Galaxy to other galaxies (Schmidt-Kaler and Schlosser 1973; de Vaucouleurs and Pence 1978; Gilmore 1984; van der Kruit 1986). While most of these investigations are based on star counts, a detailed overall study by surface photometry, because of the lack of homogeneous high-resolution data, is rare. The last attempt by van der Kruit (1986), based on Pioneer 10 data, suffered from low resolution. The great number of individual structures at low and even intermediate latitudes could not be recognized. Our work (B-band, Hoffmann et al. 1989, this volume; V-band, Schlosser, Schmidt-Kaler, and Schneider 1989; U-Band and R-band photometry, in preparation) provides this homogeneous high-resolution data.

scholarly journals A coordinated radio and optical survey of M31

1985 ◽  
Vol 106 ◽  
pp. 435-436
Author(s):  
R.A.M. Walterbos ◽  
R. C. Kennicutt
Keyword(s):  
Large Scale ◽  
Radio Continuum ◽  
Continuum Emission ◽  
Small Scale ◽  
Surface Photometry ◽  
Optical Surface ◽  
Schmidt Telescope ◽  
Infrared Observations ◽  
Andromeda Galaxy ◽  
Optical Surveys

At Leiden we are obtaining coordinated radio, optical and infrared observations of the Andromeda galaxy, M31. Its proximity offers us a unique opportunity to study both the large-scale and small-scale structure of a galaxy which is similar in many respects to the Milky Way. The WSRT has been used to obtain high-resolution (24″ × 36″) maps of M31 in the HI line and 21-and 49-cm radio-continuum emission. Recently the radio data have been complemented with optical surface photometry in UBVR and Hα, using the Burrell Schmidt telescope at Kitt Peak and the Palomar Schmidt. Results from the HI and IRAS infrared observations are presented elsewhere. Here we present some preliminary results from the radio-continuum and optical surveys.

scholarly journals Bar Properties as a Function of Hubble Type

1996 ◽  
Vol 157 ◽  
pp. 23-29
Author(s):  
Debra Meloy Elmegreen
Keyword(s):  
Surface Brightness ◽  
Near Infrared ◽  
Spiral Galaxies ◽  
Infrared Light ◽  
Surface Photometry ◽  
Optical Surface ◽  
Barred Galaxies ◽  
Additional Information ◽  
Grand Design ◽  
Barred Spiral Galaxies

AbstractPrevious optical surface photometry of barred spiral galaxies revealed that there are two distinct types of bars: large bars tend to have a nearly constant surface brightness (”flat“ bar), while smaller bars tend to have a decreasing surface brightness with a scale length similar to the disk (”exponential“ bar). Statistically, flat bars tend to occur in early Hubble types and exponential bars in later types. Studies of resonances in spirals indicate that flat bars end inside corotation, while exponential bars end between the inner Lindblad and 4:1 resonances. Near-infrared (JHK) surface photometry of bars is presented in order to compare the stellar distributions and bar potentials in flat and exponential barred galaxies. The presence of isophotal twists in some galaxies provides additional information on resonances. The grand design and fiocculent optical structures in the two types of barred galaxies will be compared and contrasted with their near-infrared light distributions.

3D documentation of footwear impressions and tyre tracks in snow with high resolution optical surface scanning

2007 ◽  
Vol 171 (2-3) ◽  
pp. 157-164 ◽  
Author(s):  
Ursula Buck ◽  
Nicola Albertini ◽  
Silvio Naether ◽  
Michael J. Thali
Keyword(s):  
High Resolution ◽  
Optical Surface ◽  
Surface Scanning ◽  
3D Documentation

scholarly journals Optical surface photometry of radio galaxies

2000 ◽  
Vol 143 (3) ◽  
pp. 369-390 ◽  
Author(s):  
F. Govoni ◽  
R. Falomo ◽  
G. Fasano ◽  
R. Scarpa
Keyword(s):  
Radio Galaxies ◽  
Surface Photometry ◽  
Optical Surface
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