2003A&A...401..939L


C.D.S. - SIMBAD4 rel 1.7 - 2021.06.17CEST08:56:53

2003A&A...401..939L - Astronomy and Astrophysics, volume 401, 939-949 (2003/4-3)

The galactic abundance gradient from Cepheids. IV. New results for the outer disc.

LUCK R.E., GIEREN W.P., ANDRIEVSKY S.M., KOVTYUKH V.V., FOUQUE P., PONT F. and KIENZLE F.

Abstract (from CDS):

As a continuation of our previous work on the abundance gradient in the outer part of the galactic disc, this paper presents results on the metallicicty distribution over galactocentric distances up to 15kpc. The outer disc is clearly separated from the middle part by the existence of a step in the metallicity distribution at about 10kpc. Taking the region of galactocentric distances from 10kpc to 15kpc, one can derive an iron gradient -0.03±0.01dex/kpc (25 stars). The existence of a discontinuity can be caused by the effective suppression of mixing processes near the corotation circle where the radial component of the gas velocity should be very small.

Abstract Copyright:

Journal keyword(s): stars: abundances - stars: variables: Cepheids - Galaxy: abundances - Galaxy: evolution

Simbad objects: 29

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Number of rows : 29

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* GQ Ori cC* 06 11 13.5830093624 +09 36 44.986218991   9.81 8.88   7.869 B 75 1
2 V* FT Mon cC* 06 21 36.0795073297 +04 04 24.841589393   11   12.23 11.496 ~ 37 0
3 V* RS Ori cC* 06 22 13.1927222060 +14 40 41.253685672   9.34 8.42   7.270 F4Ib 133 0
4 V* T Mon cC* 06 25 12.9997562821 +07 05 08.561189768 8.24 7.20 5.98   4.996 G3Iabv+A0p 451 1
5 V* CU Mon cC* 06 32 46.7955605374 +00 02 35.316926303   15.02     11.923 ~ 44 0
6 V* WW Mon cC* 06 33 37.1817036531 +09 12 12.840769070   13.65 12.492   11.155 F6 57 0
7 V* V495 Mon cC* 06 37 03.3837974248 -02 49 26.756611872   13.69       ~ 38 0
8 V* V447 Mon cC* 06 44 15.9969991189 +04 29 54.221423688     14.132   12.297 ~ 23 0
9 V* V510 Mon cC* 06 47 26.9330231896 +02 31 01.444805612   14.13 12.645   10.858 ~ 34 0
10 V* TW Mon cC* 06 50 32.3362879535 +00 00 25.185938999     12.552   10.939 ~ 42 0
11 V* XX Mon cC* 06 52 12.1699029474 -02 48 25.053620849   12.81 11.52     F6 66 0
12 V* AA Mon cC* 06 57 23.7697363711 -03 50 36.026136186   14.07 12.740   11.081 ~ 45 0
13 V* TZ Mon cC* 06 58 00.9347614861 -00 22 33.463317717   11.8       F6 83 0
14 V* FG Mon cC* 07 07 08.5490285558 -07 47 42.473450631   14.44 13.182   11.720 ~ 39 0
15 V* FI Mon cC* 07 10 37.9924208299 -07 07 22.461492125   14.07 12.900   11.578 ~ 43 0
16 V* AO CMa cC* 07 24 40.5915853513 -26 11 18.607881826           ~ 27 0
17 V* CK Pup cC* 07 27 18.8849423184 -25 47 07.304816896         11.655 ~ 22 0
18 V* BC Pup cC* 07 30 02.5526306676 -23 40 26.364259329     13.841   12.247 ~ 25 0
19 V* VW Pup cC* 07 31 49.0896193144 -20 08 58.800460904   12.12 11.15     F5 68 0
20 V* VX Pup Ce* 07 32 36.6488974993 -21 55 49.531917879   9.87 9.32 8.97   F3IV 128 0
21 V* HW Pup cC* 07 57 42.1676771396 -27 36 06.840883085   13.35 12.018   10.51 ~ 48 0
22 V* AQ Pup cC* 07 58 22.0887170720 -29 07 48.335325928   9.70 8.54   7.175 F5-G2Ib 183 0
23 V* RS Pup cC* 08 13 04.2157137938 -34 34 42.691837063 8.89 8.00 6.70   5.453 F8Iab 326 0
24 V* RZ Vel cC* 08 37 01.3029337589 -44 06 52.844429407   8.507 7.260     G1Ib 204 0
25 V* T Vel cC* 08 37 40.8268486937 -47 21 43.082343785   8.92 7.68   6.970 G0II 155 0
26 V* SW Vel cC* 08 43 38.6904013543 -47 24 11.196771088   9.58 8.32     F8/G0Ib 172 0
27 V* SX Vel cC* 08 44 53.4688984489 -46 20 34.732806621   9.19 8.33   7.264 F8II 122 0
28 V* RY Vel cC* 10 20 41.0317627466 -55 19 17.035924264   9.71 7.86   6.840 F5Ib/II 135 0
29 V* CF Cas cC* 23 58 17.9757306390 +61 13 15.821709555   12.72 10.80   9.700 F8Ibv 223 0

    Equat.    Gal    SGal    Ecl

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2021.06.17-08:56:53

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