Near infrared observations of the Local Arm

Porcel, C.; Garzon, F.; Jimenez-Vicente, J.; Battaner, E.
Bibliographical reference

Astronomy and Astrophysics, v.332, p.71-76 (1998)

Advertised on:
4
1998
Number of authors
4
IAC number of authors
1
Citations
2
Refereed citations
2
Description
Observations of the Local Arm have been carried out in the near-infrared with the 1.5 m ``Carlos Sanchez'' telescope in Tenerife. A model of the disc with adjustable parameters fitted to reproduce the DIRBE-COBE survey, has been subtracted from the observational data in order to obtain a clean map of the Local Arm, uncontaminated by other components of the disc. The arm is more than 70 pc over the plane and is wider than 200 pc. At a latitude of about 80(deg) the deviation of the arm from the galactic plane is so large that was only partially observed with our observational window of triangle b =3D +/- 6(deg) . The elevation over the plane vanishes and the width decreases as the Arm comes closer to the Sun.