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| Query : 2002ApJ...573..330L |
2002ApJ...573..330L - Astrophys. J., 573, 330-337 (2002/July-1)
Long-baseline interferometric observations of cepheids.
LANE B.F., CREECH-EAKMAN M.J. and NORDGREN T.E.
Abstract (from CDS):
We present observations of the Galactic Cepheids η Aql and ζ Gem. Our observations are able to resolve the diameter changes associated with pulsation. This allows us to determine the distance to the Cepheids independent of photometric observations. We determine a distance to η Aql of 320±32 pc and a distance to ζ Gem of 362±38 pc. These observations allow us to calibrate surface brightness relations for use in extragalactic distance determination. They also provide a measurement of the mean diameter of these Cepheids, which is useful in constructing structural models of this class of star.
Abstract Copyright: ∼
Journal keyword(s): Stars: Variables: Cepheids - Stars: Fundamental Parameters - Stars: Individual: Constellation Name: η Aquilae - Stars: Individual: Constellation Name: ζ Geminorum - Techniques: Interferometric
Simbad objects: 10
| Number of rows : 10 |
| 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 | NAME LMC | G | 05 23 34.6 | -69 45 22 | 0.4 | ~ | 19090 | 0 | ||||
| 2 | * chi01 Ori | SB* | 05 54 22.9829893 | +20 16 34.222038 | 5.08 | 5.00 | 4.40 | 3.90 | 3.59 | G0V | 895 | 0 |
| 3 | * 28 Gem | V* | 06 44 45.4597898664 | +28 58 15.380333472 | 8.53 | 6.89 | 5.44 | K4III | 49 | 0 | ||
| 4 | * 87 Gem | * | 06 51 59.9861723112 | +23 36 06.199162452 | 7.142 | 5.671 | K5III | 52 | 0 | |||
| 5 | HD 52711 | PM* | 07 03 30.4592307736 | +29 20 13.493121298 | 6.57 | 6.53 | 5.6 | G0V | 280 | 0 | ||
| 6 | * zet Gem | cC* | 07 04 06.5312384690 | +20 34 13.074474962 | 5.20 | 4.58 | 3.79 | 3.082 | G1Ib | 596 | 0 | |
| 7 | * d Aql | * | 19 20 35.6863700904 | -00 53 31.774520544 | 5.22 | 5.408 | 5.451 | B9.5III | 58 | 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 | * ksi Aql | ** | 19 54 14.8815179040 | +08 27 41.235438096 | 5.759 | 4.707 | G9.5IIIb | 157 | 1 | |||
| 10 | HD 189695 | * | 20 00 58.9762436208 | +08 33 27.850936644 | 9.32 | 7.43 | 5.91 | K5III | 35 | 0 |
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