Főoldal     To Survive in the Universe    
Services
    Why to Inhabit     Top Contributors     Asztrofotók     Kollekció     Fórum     Blog New!     GYIK     Bejelentkezés  
→ Adopt this star  

HD 29477


Tartalom

Képek

Kép feltöltése

DSS Images   Other Images


Kapcsolódó cikkek

A new optical extinction law and distance estimate for the Taurus-Auriga molecular cloud
This paper presents optical spectrophotometry of field stars projectedon the Taurus-Auriga molecular cloud. We derive extinction laws forheavily reddened stars in this sample and show that the reddening lawthrough the dark cloud is nearly identical to the standard law forlambda-lambda(3600-6100) and AV approximately less than 3mag. Our spectroscopic parallaxes suggest a distance of 140 +/- 10 pcfor the northern portion of the cloud and show no compelling evidencefor a substantial variation in distance across the leading edge of thecloud.

Magnetic field structure in the Taurus dark cloud
Optical and infrared polarimetry of sources in the direction of theTaurus cloud are obtained in order to study the magnetic field in thiscloud and its possible role in the cloud's evolution. Most of the starsare background giant stars whose light shines through the cloud and ispolarized by the cloud material. The transverse component of themagnetic field, as delineated by the polarization vectors, is generallyperpendicular to the galactic plane, and the stratified structure of thecloud could be due to the effect of the magnetic field during the earlystages of collapse. Three of the 13 embedded stars are stronglypolarized with position angles nearly perpendicular to those of nearbyfield stars. The polarization of these stars is most likely intrinsic,and the direction of polarization indicates that the materialsurrounding these stars may be magnetic i.e., that the magnetic field isfrozen in this material.

Új cikk hozzáadása


Kapcsolódó hivatkozások

  • - (nincs kapcsolódó hivatkozás) -
Új link hozzáadása


Besorolás csoportokba:


Pozíciós és asztrometriai adatok

Csillagkép:Bika
Rektaszcenzió:04h39m38.76s
Deklináció:+28°47'01.9"
Vizuális fényesség:8.709
Távolság:160.772 parszek
RA sajátmozgás:3.5
Dec sajátmozgás:8.8
B-T magnitude:9.104
V-T magnitude:8.742

Katalógusok és elnevezések:
Megfelelő nevek
HD 1989HD 29477
TYCHO-2 2000TYC 1842-674-1
USNO-A2.0USNO-A2 1125-01726887
HIPHIP 21707

→ További katalógusok és elnevezések lekérése VizieR-ből