Photometry /VBLUW system/ of 26 RR Lyrae variables in the direction of a proposed intergalactic dust cloud in Microscopium

Astronomy and Astrophysics – Astrophysics

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Astronomical Photometry, Cosmic Dust, Intergalactic Media, Interstellar Extinction, Variable Stars, Astronomical Catalogs, Astronomical Observatories, Light Curve, Ubv Spectra

Scientific paper

Photometric observations (VBLUW system) of 26 RR Lyrae stars in Microscopium (l ∼ 0°, b ∼ -39°) down to VJ = 16m, in the direction in which Hoffmeister (1962) suspected the_presence of an intergalactic dust cloud, are presented. The average interstellar reddening for the 26 RR Lyrae stars E(B-V)J = 0.10 mag. If the cloud exists, it should lie at a distance > 6 kpc and a z distance > 4 kpc.

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