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France, K.; Froning, C.S.; Linsky, J.L.; Roberge, A.; Stocke, J.T.; Tian, F.; Bushinsky, R.; Désert, J.-M.; Mauas, P.; Vieytes, M.; Walkowicz, L.M. "The ultraviolet radiation environment around M dwarf exoplanet host stars" (2013) Astrophysical Journal. 763(2)
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Abstract:

The spectral and temporal behavior of exoplanet host stars is a critical input to models of the chemistry and evolution of planetary atmospheres. Ultraviolet photons influence the atmospheric temperature profiles and production of potential biomarkers on Earth-like planets around these stars. At present, little observational or theoretical basis exists for understanding the ultraviolet spectra of M dwarfs, despite their critical importance to predicting and interpreting the spectra of potentially habitable planets as they are obtained in the coming decades. Using observations from the Hubble Space Telescope, we present a study of the UV radiation fields around nearby M dwarf planet hosts that covers both far-UV (FUV) and near-UV (NUV) wavelengths. The combined FUV+NUV spectra are publicly available in machine-readable format. We find that all six exoplanet host stars in our sample (GJ 581, GJ 876, GJ 436, GJ 832, GJ 667C, and GJ 1214) exhibit some level of chromospheric and transition region UV emission. No "UV-quiet" M dwarfs are observed. The bright stellar Lyα emission lines are reconstructed, and we find that the Lyα line fluxes comprise ∼37%-75% of the total 1150-3100 Å flux from most M dwarfs; ≳10 3 times the solar value. We develop an empirical scaling relation between Lyα and Mg II emission, to be used when interstellar H I attenuation precludes the direct observation of Lyα. The intrinsic unreddened flux ratio is F(Lyα)/F(Mg II) = 10 ± 3. The F(FUV)/F(NUV) flux ratio, a driver for abiotic production of the suggested biomarkers O 2 and O 3 , is shown to be ∼0.5-3 for all M dwarfs in our sample, >10 3 times the solar ratio. For the four stars with moderate signal-to-noise Cosmic Origins Spectrograph time-resolved spectra, we find UV emission line variability with amplitudes of 50%-500% on 10 2 -10 3 s timescales. This effect should be taken into account in future UV transiting planet studies, including searches for O 3 on Earth-like planets. Finally, we observe relatively bright H 2 fluorescent emission from four of the M dwarf exoplanetary systems (GJ 581, GJ 876, GJ 436, and GJ 832). Additional modeling work is needed to differentiate between a stellar photospheric or possible exoplanetary origin for the hot (T(H 2 ) ≈ 2000-4000 K) molecular gas observed in these objects. © 2013. The American Astronomical Society. All rights reserved..

Registro:

Documento: Artículo
Título:The ultraviolet radiation environment around M dwarf exoplanet host stars
Autor:France, K.; Froning, C.S.; Linsky, J.L.; Roberge, A.; Stocke, J.T.; Tian, F.; Bushinsky, R.; Désert, J.-M.; Mauas, P.; Vieytes, M.; Walkowicz, L.M.
Filiación:Center for Astrophysics and Space Astronomy, University of Colorado, 389 UCB, Boulder, CO 80309, United States
JILA, University of Colorado and NIST, 440 UCB, Boulder, CO 80309, United States
Exoplanets and Stellar Astrophysics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States
Center for Earth System Sciences, Tsinghua University, Beijing 100084, China
Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, United States
Instituto de Astronomsica Del Espacio (CONICET-UBA), C.C. 67 Sucursal 28, 1428 Buenos Aires, Argentina
Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544, United States
Palabras clave:planetary systems; stars: activity; stars: individual (GJ 581, GJ 876, GJ 436, GJ 832, GJ 667C, GJ 1214); stars: low-mass; ultraviolet: stars
Año:2013
Volumen:763
Número:2
DOI: http://dx.doi.org/10.1088/0004-637X/763/2/149
Título revista:Astrophysical Journal
Título revista abreviado:Astrophys. J.
ISSN:0004637X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v763_n2_p_France

Referencias:

  • Anglada-Escudé, G., Arriagada, P., Vogt, S.S., (2012) ApJL, 751, p. 16. , 10.1088/2041-8205/751/1/L16 0004-637X
  • Ayres, T.R., (1997) JGR, 102, p. 1641. , 10.1029/96JE03306 0148-0227
  • Ayres, T.R., (2010) ApJS, 187 (1), p. 149. , 10.1088/0067-0049/187/1/149 0067-0049 149
  • Bailey, J., Butler, R.P., Tinney, C.G., (2009) ApJ, 690 (1), p. 743. , 10.1088/0004-637X/690/1/743 0004-637X 743
  • Bean, J.L., Miller-Ricci Kempton, E., Homeier, D., (2010) Natur, 468, p. 669. , 10.1038/nature09596
  • Ben-Jaffel, L., (2007) ApJL, 671, p. 61. , 10.1086/524706 0004-637X
  • Berta, Z.K., Charbonneau, D., Bean, J., (2011) ApJ, 736 (1), p. 12. , 10.1088/0004-637X/736/1/12 0004-637X 12
  • Broadfoot, A.L., Belton, M.J., Takacs, P.Z., (1979) Sci, 204, p. 979. , 10.1126/science.204.4396.979
  • Buccino, A.P., Lemarchand, G.A., Mauas, P.J.D., Ultraviolet radiation constraints around the circumstellar habitable zones (2006) Icarus, 183 (2), pp. 491-503. , DOI 10.1016/j.icarus.2006.03.007, PII S0019103506001059
  • Buccino, A.P., Lemarchand, G.A., Mauas, P.J.D., (2007) Icar, 192, p. 582. , 10.1016/j.icarus.2007.08.012
  • Butler, R.P., Vogt, S.S., Marcy, G.W., Fischer, D.A., Wright, J.T., Henry, G.W., Laughlin, G., Lissauer, J.J., A neptune-mass planet orbiting the nearby M dwarf GJ 436 (2004) Astrophysical Journal, 617 (1), pp. 580-588. , DOI 10.1086/425173
  • Byrne, P.B., Doyle, J.G., (1989) A&A, 208, p. 159. , 0004-6361
  • Charbonneau, D., Berta, Z.K., Irwin, J., (2009) Natur, 462, p. 891. , 10.1038/nature08679
  • Correia, A.C.M., Couetdic, J., Laskar, J., (2010) A&A, 511, p. 21. , 10.1051/0004-6361/200912700 0004-6361
  • Cravens, T.E., (1987) JGR, 92, p. 11083. , 10.1029/JA092iA10p11083 0148-0227
  • Désert, J.-M., Bean, J., Miller-Ricci Kempton, E., (2011) ApJL, 731 (1), p. 40. , 10.1088/0004-637X/731/1/40 0004-637X 40
  • Des Marais, D.J., Harwit, M.O., Jucks, K.W., (2002) AsBio, 2, p. 153. , 10.1089/15311070260192246
  • Domagal-Goldman, S.D., Segura, A., Claire, M.C., Mendows, V.S., (2012) Natur
  • Ehrenreich, D., Désert, J.-M., (2011) A&A, 529, p. 136. , 10.1051/0004-6361/201016356 0004-6361
  • Ehrenreich, D., Lecavelier Des Etangs, A., Delfosse, X., (2011) A&A, 529, p. 80. , 10.1051/0004-6361/201016162 0004-6361
  • Feldman, P.D., McGrath, M.A., Moos, H.W., (1993) ApJ, 406, p. 279. , 10.1086/172439
  • Fontenla, J.M., Harder, J., Livingston, W., Snow, M., Woods, T., (2011) JGRD, 116, p. 20108. , 10.1029/2011JD016032
  • Fossati, L., Haswell, C.A., Froning, C.S., (2010) ApJL, 714, p. 222. , 10.1088/2041-8205/714/2/L222 0004-637X
  • France, K., Linsky, J.L., Brown, A., Froning, C.S., Béland, S., (2010) ApJ, 715 (1), p. 596. , 10.1088/0004-637X/715/1/596 0004-637X 596
  • France, K., Linsky, J.L., Tian, F., Froning, C.S., Roberge, A., (2012) ApJL, 750, p. 32. , 10.1088/2041-8205/750/2/L32 0004-637X
  • France, K., Roberge, A., Lupu, R.E., Redfield, S., Feldman, P.D., (2007) ApJ, 668 (2), p. 1174. , 10.1086/521348 0004-637X 1174
  • France, K., Schindhelm, E., Herczeg, G.J., (2012) ApJ, 756 (2), p. 171. , 10.1088/0004-637X/756/2/171 0004-637X 171
  • France, K., Stocke, J.T., Yang, H., (2010) ApJ, 712 (2), p. 1277. , 10.1088/0004-637X/712/2/1277 0004-637X 1277
  • Gizis, J.E., Reid, I.N., Hawley, S.L., The Palomar/MSU nearby star spectroscopic survey. III. Chromospheric activity, M dwarf ages, and the local star formation history (2002) Astronomical Journal, 123 (6), pp. 3356-3369. , DOI 10.1086/340465
  • Green, J.C., Froning, C.S., Osterman, S., (2012) ApJ, 744 (1), p. 60. , 10.1088/0004-637X/744/1/60 0004-637X 60
  • Gustin, J., Stewart, I., Gérard, J.-C., Esposito, L., (2010) Icar, 210, p. 270. , 10.1016/j.icarus.2010.06.031
  • Haisch, B., Strong, K.T., Rodono, M., (1991) ARA&A, 29, p. 275. , 10.1146/annurev.aa.29.090191.001423 0066-4146
  • Haswell, C.A., Fosatti, L.A., Ayres, T., (2012) ApJ, 760 (1), p. 79. , 10.1088/0004-637X/760/1/79 0004-637X 79
  • Hawley, S.L., Allred, J.C., Johns-Knull, C.M., Fisher, G.H., Abbett, W.P., Alekseev, I., Avgoloupis, S.I., Valenti, J.A., Multiwavelength observations of flares on AD Leonis (2003) Astrophysical Journal, 597 (1), pp. 535-554. , DOI 10.1086/378351
  • Hawley, S.L., Gizis, J.E., Reid, I.N., The Palomar/MSU Nearby Star Spectroscopic Survey. II. The Southern M Dwarfs and Investigation of Magnetic Activity (1996) Astronomical Journal, 112 (6), pp. 2799-2827. , DOI 10.1086/118222
  • Hawley, S.L., Pettersen, B.R., (1991) ApJ, 378, p. 725. , 10.1086/170474
  • Herczeg, G.J., Wood, B.E., Linsky, J.L., Valenti, J.A., Johns-Krull, C.M., The far-ultraviolet spectra of TW Hydrae. II. Models of H 2 fluorescence in a disk (2004) Astrophysical Journal, 607 (1), pp. 369-383. , DOI 10.1086/383340
  • Johnson, J.A., Apps, K., (2009) ApJ, 699 (2), p. 933. , 10.1088/0004-637X/699/2/933 0004-637X 933
  • Jordan, C., Brueckner, G.E., Bartoe, F, J.-D., Sandlin, G.D., Van Hoosier, M.E., (1977) Natur, 270, p. 326. , 10.1038/270326a0 0901-4004
  • Jura, M., (1975) ApJ, 197, p. 575. , 10.1086/153545
  • Kaltenegger, L., Segura, A., Mohanty, S., (2011) ApJ, 733 (1), p. 35. , 10.1088/0004-637X/733/1/35 0004-637X 35
  • Kim, Y.H., Fox, J.L., (1994) Icar, 112, p. 310. , 10.1006/icar.1994.1186
  • Kowalski, A.F., Hawley, S.L., Hilton, E.J., (2009) AJ, 138 (2), p. 633. , 10.1088/0004-6256/138/2/633 1538-3881 633
  • Kriss, G.A., (2011) Improved Medium Resolution Line Spread Functions for COS FUV Spectra
  • Kundurthy, P., Agol, E., Becker, A.C., (2011) ApJ, 731 (2), p. 123. , 10.1088/0004-637X/731/2/123 0004-637X 123
  • Lecavelier Des Etangs, A., Bourrier, V., Wheatley, P.J., (2012) A&A, 543, p. 4. , 10.1051/0004-6361/201219363 0004-6361
  • Linsky, J., France, K., Ayres, T., (2012) ApJ
  • Linsky, J.L., Bushinsky, R., Ayres, T., Fontenla, J., France, K., (2012) ApJ, 745 (1), p. 25. , 10.1088/0004-637X/745/1/25 0004-637X 25
  • Linsky, J.L., Diplas, A., Wood, B.E., (1995) ApJ, 451, p. 335. , 10.1086/176223
  • Linsky, J.L., Draine, B.T., Moos, H.W., Jenkins, E.B., Wood, B.E., Oliveira, C., Blair, W.P., Williger, G.M., What is the total deuterium abundance in the local galactic disk? (2006) Astrophysical Journal, 647 (2), pp. 1106-1124. , DOI 10.1086/505556
  • Linsky, J.L., Wood, B.E., (1996) ApJ, 463, p. 254. , 10.1086/177238
  • Linsky, J.L., Yang, H., France, K., (2010) ApJ, 717 (2), p. 1291. , 10.1088/0004-637X/717/2/1291 0004-637X 1291
  • Markwardt, C.B., (2009) Astronomical Data Analysis Software and Systems XVIII, p. 251
  • Mayor, M., Bonfils, X., Forveille, T., (2009) A&A, 507, p. 487. , 10.1051/0004-6361/200912172 0004-6361
  • Mota, R., Parafita, R., Giuliani, A., (2005) CPL, 416, p. 152. , 10.1016/j.cplett.2005.09.073
  • Murray-Clay, R.A., Chiang, E.I., Murray, N., (2009) ApJ, 693 (1), p. 23. , 10.1088/0004-637X/693/1/23 0004-637X 23
  • Osterman, S., Green, J., Froning, C., (2011) Ap&SS, 335, p. 257. , 10.1007/s10509-011-0699-5 0004-640X
  • Perrin, M.-N., Cayrel De Strobel, G., Dennefeld, M., (1988) A&A, 191, p. 237. , 0004-6361
  • Pickles, A.J., (1998) PASP, 110, p. 863. , 10.1086/316197
  • Pont, F., Gilliland, R.L., Knutson, H., Holman, M., Charbonneau, D., (2009) MNRAS, 393, p. 6. , 10.1111/j.1745-3933.2008.00582.x 0035-8711
  • Poppenhaeger, K., Robrade, J., Schmitt, J.H.M.M., (2010) A&A, 515, p. 98. , 10.1051/0004-6361/201014245 0004-6361
  • Rauer, H., Gebauer, S., Paris, P.V., (2011) A&A, 529, p. 8. , 10.1051/0004-6361/201014368 0004-6361
  • Rauscher, E., Marcy, G.W., Ca II H and K chromospheric emission lines in late-K and M dwarfs (2006) Publications of the Astronomical Society of the Pacific, 118 (842), pp. 617-635. , DOI 10.1086/503021
  • Redfield, S., Linsky, J.L., The structure of the local interstellar medium. I. High-resolution observations of Fe II, Mg II, and Ca II toward stars within 100 parsecs (2002) Astrophysical Journal, Supplement Series, 139 (2), pp. 439-465. , DOI 10.1086/338650
  • Redfield, S., Linsky, J.L., Ake, T.B., Ayres, T.R., Dupree, A.K., Robinson, R.D., Wood, B.E., Young, P.R., A far ultraviolet spectroscopic explorer survey of late-type dwarf stars (2002) Astrophysical Journal, 581 (1), pp. 626-653. , DOI 10.1086/344153
  • Ribas, I., Guinan, E.F., Gudel, M., Audard, M., Evolution of the solar activity over time and effects on planetary atmospheres. I. High-energy irradiances (1-1700 Aα) (2005) Astrophysical Journal, 622 (1), pp. 680-694. , DOI 10.1086/427977
  • Rivera, E.J., Laughlin, G., Butler, R.P., (2010) ApJ, 719 (1), p. 890. , 10.1088/0004-637X/719/1/890 0004-637X 890
  • Rivera, E.J., Lissauer, J.J., Butler, R.P., Marcy, G.W., Vogt, S.S., Fischer, D.A., Brown, T.M., Henry, G.W., A ∝7.5 M planet orbiting the nearby star, GJ 876 (2005) Astrophysical Journal, 634 (1), pp. 625-640. , DOI 10.1086/491669
  • Rojas-Ayala, B., Covey, K.R., Muirhead, P.S., Lloyd, J.P., (2010) ApJL, 720, p. 113. , 10.1088/2041-8205/720/1/L113 0004-637X
  • Sanz-Forcada, J., Micela, G., Ribas, I., (2011) A&A, 532, p. 6. , 10.1051/0004-6361/201116594 0004-6361
  • Seager, S., Deming, D., Valenti, J.A., (2009) Astrophysics in the Next Decade: The James Webb Space Telescope and Concurrent Facilities, p. 123
  • Segura, A., Kasting, J.F., Meadows, V., (2005) AsBio, 5, p. 706
  • Segura, A., Walkowicz, L.M., Meadows, V., Kasting, J., Hawley, S., (2010) AsBio, 10, p. 751
  • Selsis, F., Kasting, J.F., Levrard, B., (2007) A&A, 476, p. 1373. , 10.1051/0004-6361:20078091 0004-6361
  • Shull, J.M., (1978) ApJ, 224, p. 841. , 10.1086/156433
  • Stevenson, K.B., Harrington, J., Lust, N.B., (2012) ApJ, 755 (1), p. 9. , 10.1088/0004-637X/755/1/9 0004-637X 9
  • Tian, F., France, K., Linsky, J.L., Mauas, P.J.D., Vieytes, M.C., (2012) ApJ
  • Tian, F., Kasting, J.F., Liu, H.-L., Roble, R.G., (2008) JGRE, 113, p. 5008. , 10.1029/2007JE002946
  • Torres, G., (2007) ApJL, 671, p. 65. , 10.1086/524886 0004-637X
  • Tremblin, P., Chiang, E., (2013) MNRAS, 428, p. 2565. , 10.1093/mnras/sts212 0035-8711
  • Tuomi, M., (2011) A&A, 528, p. 5. , 10.1051/0004-6361/201015995 0004-6361
  • Vidal-Madjar, A., Desert, J.-M., Lecavelier Des Etangs, A., Hebrard, G., Ballester, G.E., Ehrenreich, D., Ferlet, R., Parkinson, C.D., Detection of oxygen and carbon in the hydrodynamically escaping atmosphere of the extrasolar planet HD 209458B (2004) Astrophysical Journal, 604 (1), pp. L69-L72. , DOI 10.1086/383347
  • Vidal-Madjar, A., Lecaveller Des Etangs, A., Desert, J.-M., Ballester, G.E., Ferlet, R., Hebrard, G., Mayor, M., An extended upper atmosphere around the extrasolar planet HD209458b (2003) Nature, 422 (6928), pp. 143-146. , DOI 10.1038/nature01448
  • Vidal-Madjar, A., Lecavelier Des Etangs, A., Désert, J.-M., (2008) ApJL, 676, p. 57. , 10.1086/587036 0004-637X
  • Von Braun, K., Boyajian, T.S., Kane, S.R., (2011) ApJL, 729, p. 26. , 10.1088/2041-8205/729/2/L26 0004-637X
  • Von Braun, K., Boyajian, T.S., Kane, S.R., (2012) ApJ, 753 (2), p. 171. , 10.1088/0004-637X/753/2/171 0004-637X 171
  • Walkowicz, L.M., Basri, G., Batalha, N., (2011) AJ, 141 (2), p. 50. , 10.1088/0004-6256/141/2/50 1538-3881 50
  • Walkowicz, L.M., Hawley, S.L., (2009) AJ, 137 (2), p. 3297. , 10.1088/0004-6256/137/2/3297 1538-3881 3297
  • Walkowicz, L.M., Johns-Krull, C.M., Hawley, S.L., (2008) ApJ, 677 (1), p. 593. , 10.1086/526421 0004-637X 593
  • Welsh, B.Y., Wheatley, J.M., Seibert, M., (2007) ApJS, 173 (2), p. 673. , 10.1086/516640 0067-0049 673
  • West, A.A., Hawley, S.L., Walkowicz, L.M., Covey, K.R., Silvestri, N.M., Raymond, S.N., Harris, H.C., Brinkmann, J., Spectroscopic properties of cool stars in the Sloan Digital Sky Survey: An analysis of magnetic activity and a search for subdwarfs (2004) Astronomical Journal, 128 (1), pp. 426-436. , DOI 10.1086/421364
  • Wolven, B.C., Feldman, P.D., (1998) GeoRL, 25, p. 1537
  • Wolven, B.C., Feldman, P.D., Strobel, D.F., McGrath, M.A., (1997) ApJ, 475 (2), p. 835. , 10.1086/303563 0004-637X 835
  • Wood, B.E., Ambruster, C.W., Brown, A., Linsky, J.L., (2000) ApJ, 542 (1), p. 411. , 10.1086/309540 0004-637X 411
  • Wood, B.E., Linsky, J.L., The Local ISM and Its Interaction With the Winds of Nearby Late-Type Stars (1998) Astrophysical Journal, 492 (2), pp. 788-803. , DOI 10.1086/305077
  • Wood, B.E., Linsky, J.L., Ayres, T.R., (1997) ApJ, 478 (2), p. 745. , 10.1086/303821 0004-637X 745
  • Wood, B.E., Redfield, S., Linsky, J.L., Muller, H.-R., Zank, G.P., Stellar Lyα emission lines in the Hubble Space Telescope archive: Intrinsic line fluxes and absorption from the heliosphere and astrospheres (2005) Astrophysical Journal, Supplement Series, 159 (1), pp. 118-140. , DOI 10.1086/430523
  • Woods, T.N., Chamberlin, P.C., Harder, J.W., (2009) GeoRL, 36, p. 01101. , 10.1029/2008GL036373
  • Wordsworth, R.D., Forget, F., Selsis, F., (2010) A&A, 522, p. 22. , 10.1051/0004-6361/201015053 0004-6361
  • Wordsworth, R.D., Forget, F., Selsis, F., (2011) ApJL, 733, p. 48. , 10.1088/2041-8205/733/2/L48 0004-637X
  • Yelle, R.V., Aeronomy of extra-solar giant planets at small orbital distances (2004) Icarus, 170 (1), pp. 167-179. , DOI 10.1016/j.icarus.2004.02.008, PII S0019103504000727
  • Yi, W., Park, J., Lee, J., Photodissociation dynamics of water at Lyman alpha (121.6 nm) (2007) Chemical Physics Letters, 439 (1-3), pp. 46-49. , DOI 10.1016/j.cplett.2007.03.071, PII S000926140700379X
  • Yoshino, K., Esmond, J.R., Sun, Y., Parkinson, W.H., Ito, K., Matsui, T., Absorption cross section measurements of carbon dioxide in the wavelength region 118.7-175.5 nm and the temperature dependence (1996) Journal of Quantitative Spectroscopy and Radiative Transfer, 55 (1), pp. 53-60. , DOI 10.1016/0022-4073(95)00135-2

Citas:

---------- APA ----------
France, K., Froning, C.S., Linsky, J.L., Roberge, A., Stocke, J.T., Tian, F., Bushinsky, R.,..., Walkowicz, L.M. (2013) . The ultraviolet radiation environment around M dwarf exoplanet host stars. Astrophysical Journal, 763(2).
http://dx.doi.org/10.1088/0004-637X/763/2/149
---------- CHICAGO ----------
France, K., Froning, C.S., Linsky, J.L., Roberge, A., Stocke, J.T., Tian, F., et al. "The ultraviolet radiation environment around M dwarf exoplanet host stars" . Astrophysical Journal 763, no. 2 (2013).
http://dx.doi.org/10.1088/0004-637X/763/2/149
---------- MLA ----------
France, K., Froning, C.S., Linsky, J.L., Roberge, A., Stocke, J.T., Tian, F., et al. "The ultraviolet radiation environment around M dwarf exoplanet host stars" . Astrophysical Journal, vol. 763, no. 2, 2013.
http://dx.doi.org/10.1088/0004-637X/763/2/149
---------- VANCOUVER ----------
France, K., Froning, C.S., Linsky, J.L., Roberge, A., Stocke, J.T., Tian, F., et al. The ultraviolet radiation environment around M dwarf exoplanet host stars. Astrophys. J. 2013;763(2).
http://dx.doi.org/10.1088/0004-637X/763/2/149