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Phase-resolved spectral analysis of 4U 1901+03 during its outburst
Ya-Juan Lei, Wei Chen, Jin-Lu Qu +5
The high mass X-ray binary 4U 1901+03 was reported to have the pulse profile evolving with the X-ray luminosity and energy during its outburst in February-July 2003: the pulse peak…
Ly-alpha emitting galaxies at redshift z~4.5 in the LALA Cetus field
Jun-Xian Wang, Sangeeta Malhotra, James E. Rhoads +2
We present a large sample of Ly-alpha emitting galaxies spectroscopically confirmed at z~4.5, based on IMACS spectroscopic observations of candidate LAEs in the LALA Cetus field. W…
An Orbit Fit for the Grillmair Dionatos Cold Stellar Stream
Benjamin A. Willett, Heidi Jo Newberg, Haotong Zhang +2
We use velocity and metallicity information from SDSS and SEGUE stellar spectroscopy to fit an orbit to the narrow stellar stream of Grillmair and Dionatos. The stars in…