Created
January 15, 2023 00:54
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SDSS DR17 subset for Di Cook
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| from astropy.table import Table | |
| data = Table.read("/uufs/chpc.utah.edu/common/home/sdss50/dr17/apogee/spectro/aspcap/dr17/synspec_rev1/allStar-dr17-synspec_rev1.fits") | |
| column_names = data.dtype.names | |
| ignore = ["TIII_FE"] | |
| available_elements = [ea for ea in column_names if f"{ea}_FLAG" in column_names and ea not in ignore] | |
| keep = ( | |
| (data["SNR"] >= 200) | |
| & (data["TEFF"] >= 4000) | |
| & (data["TEFF"] <= 7000) | |
| & (data["ASPCAPFLAG"] == 0) | |
| & (data["LOGG"] <= 4.4) | |
| ) | |
| # remove columns with multiple dimensions | |
| remove_column_names = ['FPARAM_GRID', 'CHI2_GRID', 'FPARAM', 'FPARAM_COV', 'PARAM', 'PARAM_COV', 'PARAMFLAG', 'FELEM', 'FELEM_ERR', 'X_H', 'X_H_ERR', 'X_M', 'X_M_ERR', 'ELEM_CHI2', 'ELEMFRAC', 'ELEMFLAG', 'X_H_SPEC', 'X_M_SPEC', 'VISIT_PK'] | |
| remove_column_names.extend([ | |
| "ASPCAP_ID", | |
| "TARGFLAGS", | |
| "ASPCAPFLAGS", | |
| "PROGRAMNAME" | |
| ]) | |
| for cn in remove_column_names: | |
| if cn in data.dtype.names: | |
| del data[cn] | |
| data[keep].write("allStar-dr17-synspec_rev1-subset.csv", overwrite=True) | |
| ''' | |
| import matplotlib.pyplot as plt | |
| fig, ax = plt.subplots() | |
| ax.scatter(data["TEFF"][keep], data["LOGG"][keep], c=data["FE_H"][keep], s=1) | |
| ax.set_xlim(ax.get_xlim()[::-1]) | |
| ax.set_ylim(ax.get_ylim()[::-1]) | |
| fig.savefig("tmp.png", dpi=300) | |
| ''' |
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