The dwarf irregular galaxy IC10 in Cassiopeia, is the youngest available starburst galaxy and home to many X-ray sources. Using the Gemini multi-object spectrograph (GMOS), in the wavelength range containing H-alpha, we obtained spectra of twenty five stars that are positionally coincident with X-ray sources, at the 95% significance level. The
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It also provides access to IAC Preprints Repository here: https://research.iac.es/preprints/
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Optical Spectroscopy of Candidate X-ray Binaries in the Starburst IC 10Balchunas, Andrew J. et al.92011
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Optical spectroscopy of the low-mass X-ray binary GX9+9
Phase-resolved medium-resolution VLT spectroscopy of the low-mass X-ray binary GX9+9 has revealed narrow CIII emission lines that move in phase relative to our new estimate of the ephemeris, and show a velocity amplitude of 230 +/- 35 km s-1. We identify the origin of these lines as coming from the surface of the donor star, thereby providing the
Cornelisse, R. et al.Advertised on:
92007 -
Optical surface photometry of radio galaxies - I. Observations and data analysis
This is the first paper of a series aimed at studying the structural and photometric properties in the optical band of a sample of 95 radio galaxies. Detailed surface photometry in the B and R bands is reported here for 29 objects. We give contour plots and complete structural (ellipticity, position angle, Fourier coefficients) and photometric
Fasano, G. et al.Advertised on:
91996 -
Optical variability in MAXI J1659-152
The newly identified black hole candidate X-ray binary MAXI J1659-152 (ATel #2873, #2881, GCN #11307), originally designated GRB100925A (GCN #11296) has now been detected at radio (ATel #2874), sub-mm (GCN #11304), optical (GCN #11298, #11301, #11302, #11305, #11306, #11307, #11308, #11314) and X-ray (GCN #11296, ATel #2875, #2877) wavelengths
Russell, D. M. et al.Advertised on:
92010 -
Optical/near-IR observations of SGR 1900+14 during the May-June and Aug-Sep 1998 active periods
We present the results of optical/IR observations obtained in the period June-October 1998. Images in the Gunn-z band were serendipitously taken just 3 days after the giant burst that took place on 27 Aug 1998. .
Castro-Tirado, A. J. et al.Advertised on:
92000 -
Organizational transformation into the operational phase of the GTC
In this paper we review various organizational issues encountered when GRANTECAN, the Spanish organization responsible for the construction and operation of the GTC telescope, evolved from the construction phase of a large telescope facility into the phase of scientific operation. GRANTECAN now operates and further develops the 10.4m segmented
van der Hoeven, Michiel et al.Advertised on:
92012