Additional COS informationAssigned ID: 1012
----- Attempting Submission 1 (Sat Feb 26 22:54:15 GMT 2011) -----
HST Phase I Proposal 1012 (cy19ci.apt) successfully submitted.
----- Attempting Submission 2 (Sat Feb 26 23:00:09 GMT 2011) -----Copied visit 01 into visit 51 for approved repeat.----- Attempting Submission 1 (Fri Jun 17 15:31:50 GMT 2011) -----
HST Phase II Proposal 12565 (cy19ciph2.apt) successfully submitted.
----- Attempting Submission 2 (Wed Jun 22 01:10:47 GMT 2011) -----
----- Attempting Submission 3 (Fri Feb 10 15:16:43 GMT 2012) -----Visit has been run through APT. Orbit count is too high until database can be updated to reflect the
failure of visit 01.Primordial Carbon Abundances in Extremely Metal-Poor StarsWe propose a novel approach towards defining the intital carbon abundance of extremely metal-poor stars. We will observe the C I 1930.9A line, which is detectable in unevolved turnoff stars even for [Fe/H] < -3.0. COS 1941A spectra and ground-based echelle spectra of the CH bands at 3142A and 4315A will both be analyzed with theoretical spectral calculations, and the results compared to understand better the effect of atmospheric convective motions on the CH features normally used for carbon determinations. Because the low-excitation C I 1930.9A line is virtually immune from non-LTE effects, the results should place the carbon abundances of these stars on a firm footing, of importance for theoretical scenarios of single star formation at these low metallicities.We will determine the carbon abundance of five extremely metal-poor stars from the C I line at 1903.9A, using near-UV spectra obtained in this program. These, and ground-based echelle spectra of the CH bands at 3142A and 4315A, will be analyzed by overplotting theoretical spectral calculations broadened by the appropriate the instrumental resolution.RESOLVED STELLAR POPULATIONS12false0.00.0falsefalsefalsefalseSUPPORTEDSTARF0-F2POPULATION IIThis object was generated by the targetselector and retrieved from the SIMBAD database.
Parallax from Hipparcos I/311.
RA, Dec, Epoch, Proper motion RA & Dec from Tycho2 I/259.HIP23344TYC106-1237-1J2000J2000B 10.18STARF3-F9POPULATION IIThis object was generated by the targetselector and retrieved from the SIMBAD database.
RA, Dec, and Epoch from Tycho2 I/259.
Proper Motion RA & Dec and Parallax from Hipparchos I/311.HIP48152TYC834-654-1J2000J2000B 8.69STARF3-F9POPULATION IIThis object was generated by the targetselector and retrieved from the SIMBAD database.
RA, Dec, Epoch, and Proper Motion RA & Dec are from Tycho2, catalog I/259.
No parallax found.
B from SIMBAD.TYC5523-1415-1J2000J2000B 10.69STARF0-F2POPULATION IIThis object was generated by the targetselector and retrieved from the SIMBAD database.
RA, Dec, Epoch, and Proper Motion RA & Dec from Tycho2 I/259.
Parallax from Hipparchos I/311.
B from SIMBAD.HIP66673TYC4967-579-1J2000J2000B 11.87STARF0-F2POPULATION IIThis object was generated by the targetselector and retrieved from the SIMBAD database.
RA, Dec, Epoch, and Proper Motion RA & Dec from Tycho2 catalog I/259.
No parallax found.
B from SIMBAD.TYC6338-816-1J2000J2000B 11.29COS/NUVSpectroscopicNoNoG185M1941COS/NUVSpectroscopicNoNoG185M1941COS/NUVSpectroscopicNoNoG185M1941COS/NUVSpectroscopicNoNoG185M1941COS/NUVSpectroscopicNoNoG185M1941The scheduling data was generated by CASM 19.3.CASM was run in Phase II mode.1319485747000290.0728353660179(Tic-Visit
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