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The infrared void in the Lupus dark clouds revisited: a polarimetric approach The results of B-band CCD imaging linear polarimetry obtained for starsfrom the Hipparcos catalogue are used to re-examine the distribution ofthe local interstellar medium towards the IRAS 100-μm emission voidin the Lupus dark clouds. The analysis of the obtainedparallax-polarization diagram assigns to the dark cloud Lupus1 adistance between 130 and 150pc and assures the existence of a low columndensity region coincident with the observed infrared void. Moreover,there are clear indications of the existence of absorbing material atdistances closer than 60-100pc, which may be associated with theinterface boundary between the Local Bubble and its neighbourhood LoopIsuperbubble.
| Walraven photometry of nearby southern OB associations Homogeneous Walraven (VBLUW) photometry is presented for 5260 stars inthe regions of five nearby southern OB associations: Scorpio Centaurus(Sco OB2), Orion OB1, Canis Major OB1, Monoceros OB1, and Scutum OB2.Derived V and (B - V) in the Johnson system are included.
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Membre dels grups següents:
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Dades d'Observació i Astrometria
Constel·lació: | Lupus |
Ascensió Recta: | 15h24m33.15s |
Declinació: | -34°03'54.8" |
Magnitud Aparent: | 9.293 |
Moviment propi RA: | -32.8 |
Moviment propi Dec: | -9.2 |
B-T magnitude: | 9.835 |
V-T magnitude: | 9.338 |
Catàlegs i designacions:
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