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14 papers · 1 filter
Maximum-Likelihood Comparisons of Tully-Fisher and Redshift Data: Constraints on Omega and Biasing
Jeffrey A. Willick, Michael A. Strauss, Avishai Dekel +1
We compare Tully-Fisher (TF) data for 838 galaxies within cz=3000 km/sec from the Mark III catalog to the peculiar velocity and density fields predicted from the 1.2 Jy IRAS redshi…
EROS differential studies of Cepheids in the Magellanic Clouds : Stellar pulsation, stellar evolution and distance scale
J. P. Beaulieu, D. D. Sasselov
We present a differential study of 500 Magellanic Cepheids with 3 million measurements obtained as a by-product of the EROS microlensing survey. The data-set is unbiased and provid…
X-ray variability in M87
D. E. Harris, J. A. Biretta, W. Junor
We present the evidence for X-ray variability from the core and from knot A in the M87 jet based on data from two observations with the Einstein Observatory High Resolution Imager…
Are Luminous cD Haloes Formed by the Disruption of Dwarf Galaxies?
Omar Lopez-Cruz, H. K. C. Yee, James P. Brown +2
From a total sample of 45 Abell clusters observed by the Einstein X-ray observatory, we present the results on the galaxy luminosity function (LF) for a group of seven clusters tha…
The Dwarf Spheroidal Companions to M31: WFPC2 Observations of Andromeda I
G. S. Da Costa, T. E. Armandroff, Nelson Caldwell +1
Images have been obtained with the Hubble Space Telescope WFPC2 camera of Andromeda I, a dwarf spheroidal (dSph) galaxy that lies in the outer halo of M31. The resulting color-magn…
Neutral Hydrogen 21cm Absorption at Redshift 0.673 towards 1504+377
C. L. Carilli, Karl M. Menten, Mark J. Reid +1
We detect the 21 cm line of neutral hydrogen in absorption at a redshift of 0.673 towards the 1 Jy radio source 1504+377. The 1504+377 radio source is located toward the center of…