... Paul Green and Kevin Covey) H-alpha Emission from X-ray Bright M Stars: Optical Classification and Characterization of X-ray Sources from ChaMP Arpita Roy (Advisor: Dr. Elizabeth Humphreys) Probing the Structure of the Orion-IRc2 Maser: Accretion and ...
... widths, and FWHM (accurate to 10 percent): H-alpha, 0.19 nm, 2200 km/s; H-beta, 0.01 ... The H-alpha FWHM that we find in this x-ray nova is approximately equal to the ...
... Photometry of J0422+32 was done on December 5, 2000 using KPNO/Mosaic with V, R, I and H-alpha filters. ... White squares denote H-alpha emission sources, 3 of which are Chandra sources. ...
... from _opt.rdb tables, 17.9 = 17 - H-alpha excess sources (no X-ray match): H-R = -1 Hsharp For the G292 field: 1. selection criteria and definitions for the new (=2005) masks: - faint masks : R = 17 - XHa : H-alpha excess sources (no X-ray match): H-R ...
... The only clearly identifiable lines are H-beta, H-gamma, and Na D in absorption; a strong night sky line at H-alpha makes it difficult to determine the intrinsic H-alpha profile. ...
... The FAST spectra of the B star fail to show the weak H-alpha emission reported by Israel et al.; instead, H-alpha absorption is seen with EW = 0.68 nm. ...
... Mosaic Camera, obtained deep images in the V, R, I and H-alpha bands for 65 fields, which cover about 23 square degrees and 199 ... shallow) . I . (shallow) . H-alpha . (shallow) . V . (deep) . ...
... activity in these old giants: H-alpha emission appears in their spectra and it ... a unique set of multiple optical H-alpha spectra of metal deficient field giants ... The reduction and analysis of H-alpha and ultraviolet spectra, and comparison to ...