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| Query : 2000A&A...358..587K |
2000A&A...358..587K - Astronomy and Astrophysics, volume 358587-592 (2000/6-2)
Precise temperatures of classical Cepheids and yellow supergiants from line-depth ratios.
KOVTYUKH V.V. and GORLOVA N.I.
Abstract (from CDS):
The ratios of spectral line-depths are powerful indicators of the effective temperature. Thirty-two functional formulas to estimate the effective temperatures from line-depth ratios for Cepheids and F-G supergiants are offered. For high-quality spectra we find errors in the temperature as small as 10-15K. These calibrations are only little sensitive to other stellar parameters and allow to derive highly precise Teff for supergiants in the range 4700-6700K.
Abstract Copyright: ∼
Journal keyword(s): line: formation - stars: fundamental parameters - stars: variables: Cepheids
Simbad objects: 12
| Number of rows : 12 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | V* SZ Tau | cC* | 04 37 14.7776556504 | +18 32 34.926940860 | 7.65 | 7.13 | 6.37 | F6.7:Ib | 316 | 0 | ||
| 2 | V* T Mon | cC* | 06 25 12.9996760920 | +07 05 08.558582892 | 8.24 | 7.20 | 5.98 | 4.996 | G3Iabv+A0p | 487 | 1 | |
| 3 | * zet Gem | cC* | 07 04 06.5312384690 | +20 34 13.074474962 | 5.20 | 4.58 | 3.79 | 3.082 | G1Ib | 596 | 0 | |
| 4 | * ksi Boo A | PM* | 14 51 23.3884659504 | +19 06 01.619801424 | 5.40 | 4.675 | G7Ve | 564 | 0 | |||
| 5 | V* U Sgr | cC* | 18 31 53.3323107600 | -19 07 30.261459540 | 8.50 | 7.81 | 6.68 | 5.413 | G1Ib | 491 | 0 | |
| 6 | * sig Dra | PM* | 19 32 21.5902098601 | +69 39 40.235805206 | 5.860 | 5.460 | 4.680 | 4.04 | 3.63 | K0V | 691 | 0 |
| 7 | V* SV Vul | cC* | 19 51 30.9059845128 | +27 27 36.837672012 | 8.65 | 9.00 | 6.74 | 5.703 | F8Ia | 460 | 0 | |
| 8 | * eta Aql | cC* | 19 52 28.3689223781 | +01 00 20.371980515 | 5.12 | 4.61 | 3.80 | 3.030 | F6Iab+B9.8V | 701 | 0 | |
| 9 | * 10 Sge | cC* | 19 56 01.2628947456 | +16 38 05.262056412 | 6.45 | 6.03 | 5.36 | 6.81 | 4.789 | F7Ib | 369 | 0 |
| 10 | V* X Cyg | cC* | 20 43 24.1917118680 | +35 35 16.077149700 | 8.69 | 7.70 | 6.47 | 5.241 | F7Ib | 496 | 0 | |
| 11 | V* T Vul | cC* | 20 51 28.2383768376 | +28 15 01.819622952 | 6.89 | 6.49 | 5.77 | 5.061 | F5Ib+A0.8V | 357 | 0 | |
| 12 | * del Cep | cC* | 22 29 10.2626640314 | +58 24 54.697613650 | 4.71 | 4.35 | 3.75 | 3.219 | F5Iab:+B7-8 | 763 | 0 |
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