Modeling Galaxy Velocity Fields and Inclination Angles

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

The RESOLVE (REsolved Spectroscopy Of a Local VolumE) Survey will quantify the stellar, gas, and total dynamical mass of every galaxy with baryonic mass >109 Msun within a well-defined volume of the local universe. The survey's all-inclusive nature presents substantial challenges for dynamical mass measurement, best addressed by 2D velocity field modeling and statistical analysis. Here we describe a straightforward method to translate observational velocity fields into intrinsic maximal rotation velocities and inclinations. Initially, we build a library of model galaxy velocity fields based on a simple rotating disk model. We then use chi-squared minimization to find the best fit model to our observational data. We present an example implementation of this approach for SparsePak IFU data. We also discuss a method for determining the intrinsic flattening of specific classes of galaxies through the statistical comparison of real data and randomly oriented galaxy models.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Modeling Galaxy Velocity Fields and Inclination Angles does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Modeling Galaxy Velocity Fields and Inclination Angles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modeling Galaxy Velocity Fields and Inclination Angles will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1887483

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.