Bright and Flat-Spectrum Standards for Ratioing at 10 and 20 Microns

Bright and Flat-Spectrum Standards for Ratioing at 10 and 20 Microns

This is a list of bright IR stars for ratioing 10 and 20um low and medium resolution spectra.

At low and medium resolution stars of spectral type K0 and earlier have smooth spectra and effectively no SiO fundamental band, which in later type stars can extend from 7.5um to 10um. Their spectra also should be smooth in the 20um band. Hence they can be used for ratioing both at 10um and 20um. 

The stars of spectral type K1-K5 also are suitable for ratioing low-medium resolution 20um spectra. However, these stars will have SiO bands in the short wavelength half of the 10um window, and hence are (progressively with spectral type) less suitable for ratioing 10um spectra.

To summarize:
     Stars of spectral type K0 and earlier are suitable for 10um and 20um.
     Stars of spectral type K1-K5 are suitable only for 20um.

Coordinates (2000) and V magnitudes are from the Bright Star Catalogue. IR magnitudes are from the literature. 

> -30

NameSp. TypeRADecVL’NQ
BS 74K10 20-093.60.8-0.4
BS 99K0 0 26-422.4
BS 165K30 40313.30.3
BS 168K0 0 40572.2-0.5
BS 188G90 43-182.0-0.4
BS 334K21 08-103.50.8
BS 402K01 24-83.61.11.0
BS 437G91 30153.6
BS 464K31 3849 3.60.6
BS 603K32 03422.3-0.8
BS 617K22 07242.0-0.7-0.8-0.8
BS 915G53 04532.90.90.8
BS 1017F53 24501.80.50.5
BS 1030G63 2593.61.4
BS 1136K03 43-10 3.51.4
BS 1409G94 28193.51.2
BS 1457*K54 3617 0.8-2.98-3.03-3.09
BS 1654K45 05-223.2-0.3
BS 1708*G85 12460.1-1.87-1.94-1.93
BS 1713B85 12-8 0.10.080.06-0.3
BS 2040K15 50-363.1
BS 2473G86 43253.00.00.0
BS 2491*A16 42-17-1.5-1.37-1.42-1.36
BS 2693F87 08-261.80.30.0
BS 2878K57 29-433.3
BS 2943*F57 3650.3-0.66-0.76-0.73
BS 2990*K07 42281.1-1.15-1.24-1.21
BS 3017K57 45-383.6
BS 3045G67 49-253.30.8
BS 3249K48 1793.50.0
BS 3461K08 44183.91.4
BS 3547G98 5563.10.7
BS 3634K49 08-432.2
BS 3748K39 28-092.0-1.3-1.4-1.5
BS 3873G19 46 243.01.0
BS 4057K110 20 20 1.6-0.7-1.1-1.1
BS 4232K210 50 -16 3.10.2
BS 4247K010 53343.81.2
BS 4335K111 09443.00.3
BS 4377K311 18333.50.2
BS 4382G811 19-153.60.8
BS 4450G711 30-313.51.4
BS 4518K011 46483.50.8
BS 4630K312 10-233.0-0.1
BS 4786G512 34-232.60.60.6
BS 4932G813 0111 2.80.8
BS 5020G813 18-233.00.9
BS 5235G013 54182.71.3
BS 5287K214 06-273.30.6
BS 5288K14 06-362.1-0.3
BS 5340K14 11200.0-3.08-3.17-3.31
BS 5429K314 32303.60.6
BS 5506K014 44272.40.0
BS 5602G815 02403.51.3
BS 5705K415 22-363.6
BS 5744K215 24593.30.5
BS 5787G815 35-15 3.91.4
BS 5794K315 37-283.6
BS 5854K215 44062.70.0
BS 5908G815 54-174.11.5
BS 6075G916 18 -53.21.0
BS 6148G716 30222.80.6
BS 6212G016 41322.81.3
BS 6220G016 43393.51.2
BS 6241K216 50-342.3-0.4
BS 6299K216 57093.20.6
BS 6418K317 14373.2-0.2
BS 6536G217 30 522.80.7
BS 6556A517 35132.11.6
BS 6603K217 43052.80.1
BS 6630K217 50-373.20.4
BS 6698K017 58-103.31.0
BS 6705K517 57512.2-1.5-1.5-1.5
BS 6746K018 053.00.6
BS 6859K218 21-302.7
BS 6869K018 21-33.31.0
BS 6913K118 28-252.80.3
BS 7001*A018 35390.00.000.000.00
BS 7150K118 58-213.50.8
BS 7234K219 06-283.30.5
BS 7264F219 09-212.91.7
BS 7314K019 16384.41.5
BS 7417K319 32283.20.0
BS 7525K319 51112.7-0.6-0.7-0.8
BS 7557A7 19 5190.80.2
BS 7615K019 56353.91.5
BS 7776F820 21-143.10.8
BS 7796F820 22402.20.6
BS 7924A220 41451.20.80.60.4
BS 7949K020 46342.50.0
BS 8115G821 13303.21.0
BS 8308K221 44102.4-1.0-1.2
BS 8414G222 0603.00.8
BS 8465K222 11583.40.0-0.1
BS 8650G822 42302.90.6
BS 8684G822 49253.51.3
BS 8812K223 09-213.70.9
BS 8852G923 1633.71.4
BS 8892K023 23-204.01.3
BS 8961G823 37463.81.3

* denotes a bright IR standard