2008ApJ...677..593W

Query : 2008ApJ...677..593W

2008ApJ...677..593W - Astrophys. J., 677, 593-606 (2008/April-2)

Characterizing the Near-UV environment of M dwarfs.

WALKOWICZ L.M., JOHNS-KRULL C.M. and HAWLEY S.L.

Abstract (from CDS):

We report the results of our Hubble Space Telescope (HST) snapshot survey with the ACS HRC PR200L prism, designed to measure the near-UV emission in a sample of nearby M dwarfs. Thirty-three stars were observed, spanning the mass range from 0.1 to 0.6 solar masses (Teff∼2200-4000 K) where the UV energy distributions vary widely between active and inactive stars. These observations provide much needed constraints on models of the habitability zone and the atmospheres of possible terrestrial planets orbiting M dwarf hosts and will be useful in refining the target selection for future space missions such as Terrestrial Planet Finder (TPF). We compare our data with a new generation of M dwarf atmospheric models and discuss their implications for the chromospheric energy budget. These NUV data will also be valuable in conjunction with existing optical, FUV, and X-ray data to explore unanswered questions regarding the dynamo generation and magnetic heating in low-mass stars.

Abstract Copyright: ∼

Journal keyword(s): Stars: Activity - Stars: Chromospheres - Stars: Flare - Stars: Low-Mass, Brown Dwarfs - Ultraviolet: Stars

Simbad objects: 36

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Number of rows : 36
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 Ross 318 PM* 01 02 32.2354294685 +71 40 47.336260174   11.736   9.1   M3.0V 192 0
2 BD+61 195 PM* 01 02 38.8680626986 +62 20 42.175257431   11.439   8.7   M1.5V 285 0
3 NAME BD-17 588BC ** 03 01 51.076872 -16 35 31.06608   12.30 10.59 11.06   M2.5V 65 0
4 LP 535-12 LM* 04 26 19.9396822953 +03 36 36.175901824   18.7   17.1   M6.5V 51 0
5 LP 476-207 SB* 05 01 58.79419 +09 58 59.2855   12.93 11.53 10.33 8.708 M3.5V 120 0
6 HD 33793 PM* 05 11 40.5898395497 -45 01 06.361734876 11.624 10.433 8.853 7.9 6.899 M1VIp 367 0
7 HD 36395 PM* 05 31 27.3957852161 -03 40 38.024004501 10.626 9.443 7.968 6.996 5.913 M1.5Ve 574 0
8 HD 42581 PM* 06 10 34.6149358167 -21 51 52.656352926 10.801 9.607 8.125 7.164 6.121 M1V 544 0
9 BD+05 1668 PM* 07 27 24.4989685603 +05 13 32.841491057 12.558 11.443 9.872 8.699 7.161 M3.5V 477 0
10 Ross 619 PM* 08 11 57.5691729379 +08 46 22.952885566   14.60 12.834 12.527   M4.5V 227 0
11 G 113-20 PM* 08 16 07.9813123847 +01 18 09.265205331 12.824 11.63 10.091 9.071 7.851 M2.0V 163 0
12 G 234-45 PM* 08 41 20.1286588424 +59 29 50.444062516   16.98   14.1   dM5.5 111 0
13 V* AD Leo PM* 10 19 36.2808181226 +19 52 12.010446571   10.82 9.52 9.19   dM3 1469 1
14 BD+01 2447 PM* 10 28 55.5512830314 +00 50 27.598904576 12.389 11.151 9.650 8.617 7.389 dM2 361 0
15 BD+44 2051 PM* 11 05 28.5769490063 +43 31 36.386948721 11.440 10.270   7.9   M1.0V 368 0
16 V* SZ UMa PM* 11 20 04.8264516310 +65 50 47.349400374 13.24 10.66 9.30 8.4   M2V 192 0
17 CD-51 5974 PM* 11 43 19.8200648771 -51 50 25.930594759   11.89 10.360 10.005   M0V 62 0
18 G 237-78 SB* 12 49 02.75637 +66 06 36.6642   12.703 10.838 10.544   M3V 109 0
19 BD+11 2576 PM* 13 29 59.7858994351 +10 22 37.784532575 11.728 10.524 9.029 8.07 7.013 M1.0V 313 0
20 HD 119850 PM* 13 45 43.7755597223 +14 53 29.471707437 10.989 9.894 8.50 7.465 6.363 M2V 402 0
21 BD-07 4003 BY* 15 19 26.8269387505 -07 43 20.189497466 13.403 11.76 10.560 9.461 8.911 M3V 717 2
22 CD-40 9712 PM* 15 32 12.9323109019 -41 16 32.130433884 11.918 10.815 9.311 8.265 6.947 M2.5V 159 0
23 BD-12 4523 BY* 16 30 18.0583947383 -12 39 45.321217732 12.829 11.638 10.072 8.917 7.421 M3V 365 0
24 BD+68 946 PM* 17 36 25.8993094605 +68 20 20.909627174 11.73 10.65   8.3   M3.0V 345 0
25 CD-44 11909 PM* 17 37 03.6654566674 -44 19 09.166492972 13.791 12.593 10.946 9.729 8.145 M3.5V 149 0
26 BD+18 3421 PM* 17 37 53.3468417549 +18 35 30.164096453 12.315 11.109 9.577 8.599 7.525 M1.5V 257 0
27 HD 165222 PM* 18 05 07.5787518746 -03 01 52.749184670 12.09 10.878 9.360 8.385 7.304 M0V 268 0
28 G 258-33 PM* 18 18 57.2325828283 +66 11 33.304331650   15.29   13.096   M4.5Ve 116 0
29 MCC 188 SB* 18 55 27.4101872496 +08 24 09.030546324 12.858 11.737 10.194 9.09 7.69 M3Ve 214 0
30 HD 191849 PM* 20 13 53.3962498530 -45 09 50.470550834 10.627 9.419 7.966 7.053 6.124 M0V 178 0
31 HD 199305 PM* 20 53 19.7889212813 +62 09 15.817261385   10.459   7.7   M1.0V 258 0
32 V* AX Mic PM* 21 17 15.2690680973 -38 52 02.503938581   8.06 6.68     M1V 249 0
33 BD-15 6290 BY* 22 53 16.7325836486 -14 15 49.304052185 12.928 11.749 10.192 9.013 7.462 M3.5V 1106 1
34 HD 216899 PM* 22 56 34.8046530863 +16 33 12.355636588 11.323 10.143 8.638 7.657 6.542 M1.5V 335 0
35 G 28-39 PM* 23 08 06.9640754792 +03 19 44.375652761 13.608 12.406 10.887 9.94 8.961 M0V 68 0
36 V* BR Psc BY* 23 49 12.5250852078 +02 24 04.405476893 11.532 10.427 8.993 8.029 6.946 dM1 370 0

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