Query : 1998A&A...332...71P

1998A&A...332...71P - Astronomy and Astrophysics, volume 332, 71-76 (1998/4-1)

Near infrared observations of the Local Arm.


Abstract (from CDS):

Observations of the Local Arm have been carried out in the near-infrared with the 1.5m ``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 70pc over the plane and is wider than 200pc. At a latitude of about 80° the deviation of the arm from the galactic plane is so large that was only partially observed with our observational window of {DELTA}b=±6°. The elevation over the plane vanishes and the width decreases as the Arm comes closer to the Sun.

Abstract Copyright:

Journal keyword(s): Galaxy: structure - infrared: galaxies

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
1 NAME Local Arm reg ~ ~           ~ 442 0

Query : 1998A&A...332...71P

Basic data :
NAME Local Arm -- Region defined in the sky
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types:
reg ()
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) :
No Coord.

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (3) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NAME Local Arm NAME Local Spiral Arm NAME Orion Spur

References (442 between 1850 and 2022) (Total 442)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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