Sciences and Exploration Directorate

Allison Youngblood

(Rsch AST, Stlr Galctic&Xtrgltc Astr)


Org Code: 667

Mail Code: 667
Greenbelt, MD 20771

Employer: NASA

Research Interests

Exoplanets and their host stars

Astrophysics: Extrasolar planets

Stellar Activity

Astrophysics: Stars


Research Astrophysicist

NASA Goddard Space Flight Center - Greenbelt, MD

July 2021 - Present

Research Scientist II

LASP / University of Colorado - Boulder, CO

October 2019 - July 2021

NASA Postdoctoral Program Fellow

Goddard Space Flight Center - Greenbelt, MD

September 2017 - September 2019

Research Scientist I

LASP / University of Colorado - Boulder, CO

May 2017 - September 2017


Ph.D. in Astrophysical & Planetary Sciences from University of Colorado Boulder, 2017
Thesis: Star Formation and Planets in Harsh Environments

M.S. in Astrophysical & Planetary Sciences from University of Colorado Boulder, 2012

B.A. in Astrophysics from Wellesley College, 2010

Professional Societies

American Astronomical Society

2010 - Present



Quick, L. C., A. Roberge, G. T. Mendoza, E. V. Quintana, and A. A. Youngblood. 2023. Prospects for Cryovolcanic Activity on Cold Ocean Planets The Astrophysical Journal 956 (1): 29 [10.3847/1538-4357/ace9b6]

Cucho-Padin, G., D. Bhattacharyya, D. G. Sibeck, et al. H. Connor, A. Youngblood, and D. Ardila. 2023. EXOSpy: A python package to investigate the terrestrial exosphere and its FUV emission Frontiers in Astronomy and Space Sciences 10 [10.3389/fspas.2023.1082150]

Chavali, S., A. Youngblood, R. R. Paudel, et al. R. O. Loyd, K. Molaverdikhani, J. S. Pineda, T. Barclay, and L. D. Vega. 2022. A Pilot Survey of an M Dwarf Flare Star with Swift’s UV Grism Research Notes of the AAS 6 (9): 201 [10.3847/2515-5172/ac9591]

Youngblood, A., J. S. Pineda, T. Ayres, et al. K. France, J. L. Linsky, B. E. Wood, S. Redfield, and J. E. Schlieder. 2022. Intrinsic Lyα Profiles of High-velocity G, K, and M Dwarfs The Astrophysical Journal 926 (2): 129 [10.3847/1538-4357/ac4711]

Paudel, R. R., T. Barclay, J. E. Schlieder, et al. E. V. Quintana, E. A. Gilbert, L. D. Vega, A. Youngblood, M. Silverstein, R. A. Osten, M. A. Tucker, D. Huber, A. Do, K. Hamaguchi, D. J. Mullan, J. E. Gizis, T. A. Monsue, K. D. Colón, P. T. Boyd, J. R. Davenport, and L. Walkowicz. 2021. Simultaneous Multiwavelength Flare Observations of EV Lacertae The Astrophysical Journal 922 (1): 31 [10.3847/1538-4357/ac1946]

Melbourne, K., A. Youngblood, K. France, et al. C. Froning, J. S. Pineda, E. L. Shkolnik, D. J. Wilson, B. E. Wood, S. Basu, A. Roberge, J. E. Schlieder, P. W. Cauley, R. P. Loyd, E. R. Newton, A. Schneider, N. Arulanantham, Z. Berta-Thompson, A. Brown, A. P. Buccino, E. Kempton, J. L. Linsky, S. E. Logsdon, P. Mauas, I. Pagano, S. Peacock, S. Redfield, S. Rugheimer, P. C. Schneider, D. Teal, F. Tian, D. Tilipman, and M. Vieytes. 2020. Estimating the Ultraviolet Emission of M Dwarfs with Exoplanets from Ca II and Hensuremathalpha The Astronomical Journal 160 (6): 269 [10.3847/1538-3881/abbf5c]

Gilbert, E. A., T. Barclay, J. E. Schlieder, et al. E. V. Quintana, B. J. Hord, V. B. Kostov, E. D. Lopez, J. F. Rowe, K. Hoffman, L. M. Walkowicz, M. L. Silverstein, J. E. Rodriguez, A. Vanderburg, G. Suissa, V. S. Airapetian, M. S. Clement, S. N. Raymond, A. W. Mann, E. Kruse, J. J. Lissauer, K. D. Colón, R. K. Kopparapu, L. Kreidberg, S. Zieba, K. A. Collins, S. N. Quinn, S. B. Howell, C. Ziegler, E. H. Vrijmoet, F. C. Adams, G. N. Arney, P. T. Boyd, J. Brande, C. J. Burke, L. Cacciapuoti, Q. Chance, J. L. Christiansen, G. Covone, T. Daylan, D. Dineen, C. D. Dressing, Z. Essack, T. J. Fauchez, B. Galgano, A. R. Howe, L. Kaltenegger, S. R. Kane, C. Lam, E. J. Lee, N. K. Lewis, S. E. Logsdon, A. M. Mandell, T. Monsue, F. Mullally, S. E. Mullally, R. R. Paudel, D. Pidhorodetska, P. Plavchan, N. T. Reyes, S. A. Rinehart, B. Rojas-Ayala, J. C. Smith, K. G. Stassun, P. Tenenbaum, L. D. Vega, G. L. Villanueva, E. T. Wolf, A. Youngblood, G. R. Ricker, R. K. Vanderspek, D. W. Latham, S. Seager, J. N. Winn, J. M. Jenkins, G. Bakos, C. Briceño, D. R. Ciardi, R. Cloutier, D. M. Conti, A. Couperus, M. Di Sora, N. L. Eisner, M. E. Everett, T. Gan, J. D. Hartman, T. Henry, G. Isopi, W.-C. Jao, E. L. Jensen, N. Law, F. Mallia, R. A. Matson, B. J. Shappee, M. Le Wood, and J. G. Winters. 2020. The First Habitable-zone Earth-sized Planet from TESS. I. Validation of the TOI-700 System The Astronomical Journal 160 (3): 116 [10.3847/1538-3881/aba4b2]

Youngblood, A., G. N. Arney, A. García Muñoz, et al. J. T. Stocke, K. France, and A. Roberge. 2020. The Hubble Space Telescope's Near-UV and Optical Transmission Spectrum of Earth as an Exoplanet The Astronomical Journal 160 (3): 100 [10.3847/1538-3881/aba0b4]

Kostov, V. B., J. E. Schlieder, T. Barclay, et al. E. V. Quintana, K. D. Colón, J. Brande, K. A. Collins, A. D. Feinstein, S. Hadden, S. R. Kane, L. Kreidberg, E. Kruse, C. Lam, E. Matthews, B. T. Montet, F. J. Pozuelos, K. G. Stassun, J. G. Winters, G. Ricker, R. Vanderspek, D. Latham, S. Seager, J. Winn, J. M. Jenkins, D. Afanasev, J. J. Armstrong, G. Arney, P. Boyd, G. Barentsen, K. Barkaoui, N. E. Batalha, C. Beichman, D. Bayliss, C. Burke, A. Burdanov, L. Cacciapuoti, A. Carson, D. Charbonneau, J. Christiansen, D. Ciardi, M. Clampin, K. I. Collins, D. M. Conti, J. Coughlin, G. Covone, I. Crossfield, L. Delrez, S. Domagal-Goldman, C. Dressing, E. Ducrot, Z. Essack, M. E. Everett, T. Fauchez, D. Foreman-Mackey, T. Gan, E. Gilbert, M. Gillon, E. Gonzales, A. Hamann, C. Hedges, H. Hocutt, K. Hoffman, E. P. Horch, K. Horne, S. Howell, S. Hynes, M. Ireland, J. M. Irwin, G. Isopi, E. L. Jensen, E. Jehin, L. Kaltenegger, J. F. Kielkopf, R. Kopparapu, N. Lewis, E. Lopez, J. J. Lissauer, A. W. Mann, F. Mallia, A. Mandell, R. A. Matson, T. Mazeh, T. Monsue, S. E. Moran, V. Moran, C. V. Morley, B. Morris, P. Muirhead, K. Mukai, S. Mullally, F. Mullally, C. Murray, N. Narita, E. Palle, D. Pidhorodetska, D. Quinn, H. Relles, S. Rinehart, M. Ritsko, J. E. Rodriguez, P. Rowden, J. F. Rowe, D. Sebastian, R. Sefako, S. Shahaf, A. Shporer, N. T. Reyes, P. Tenenbaum, E. B. Ting, J. D. Twicken, G. T. van Belle, L. Vega, J. Volosin, L. M. Walkowicz, and A. Youngblood. 2019. The L 98-59 System: Three Transiting, Terrestrial-size Planets Orbiting a Nearby M Dwarf The Astronomical Journal 158 (1): 32 [10.3847/1538-3881/ab2459]

Youngblood, A., K. France, A. Ginsburg, K. Hoadley, and J. Bally. 2018. The Orion fingers: H2 temperatures and excitation in an explosive outflow Astrophysical Journal 857 7 []

Kruczek, N., K. France, W. Evonosky, et al. R. O. Loyd, A. Youngblood, A. Roberge, R. A. Wittenmyer, J. T. Stocke, B. Fleming, and K. Hoadley. 2017. H2 Fluorescence in M Dwarf Systems: A Stellar Origin The Astrophysical Journal 845 (1): 3 [10.3847/1538-4357/aa7b79]

Youngblood, A., K. France, R. O. Loyd, et al. A. Brown, J. P. Mason, P. C. Schneider, M. A. Tilley, Z. K. Berta-Thompson, A. Buccino, C. S. Froning, S. L. Hawley, J. Linsky, P. J. Mauas, S. Redfield, A. Kowalski, Y. Miguel, E. R. Newton, S. Rugheimer, A. Segura, A. Roberge, and M. Vieytes. 2017. The MUSCLES Treasury Survey. IV. Scaling Relations for Ultraviolet, Ca II K, and Energetic Particle Fluxes from M Dwarfs The Astrophysical Journal 843 (1): 31 [10.3847/1538-4357/aa76dd]

Fossati, L., S. E. Marcelja, D. Staab, et al. P. E. Cubillos, K. France, C. A. Haswell, S. Ingrassia, J. S. Jenkins, T. Koskinen, A. F. Lanza, S. Redfield, A. Youngblood, and G. Pelzmann. 2017. The effect of ISM absorption on stellar activity measurements and its relevance for exoplanet studies Astronomy & Astrophysics 601 A104 [10.1051/0004-6361/201630339]

Bally, J., A. Ginsburg, H. Arce, et al. J. Eisner, A. Youngblood, L. Zapata, and H. Zinnecker. 2017. The ALMA View of the OMC1 Explosion in Orion The Astrophysical Journal 837 (1): 60 [10.3847/1538-4357/aa5c8b]

P. Loyd, R. O., K. France, A. Youngblood, et al. C. Schneider, A. Brown, R. Hu, J. Linsky, C. S. Froning, S. Redfield, S. Rugheimer, and F. Tian. 2016. THE MUSCLES TREASURY SURVEY. III. X-RAY TO INFRARED SPECTRA OF 11 M AND K STARS HOSTING PLANETS The Astrophysical Journal 824 (2): 102 [10.3847/0004-637x/824/2/102]

Youngblood, A., K. France, R. O. Loyd, et al. J. L. Linsky, S. Redfield, P. C. Schneider, B. E. Wood, A. Brown, C. Froning, Y. Miguel, S. Rugheimer, and L. Walkowicz. 2016. THE MUSCLES TREASURY SURVEY. II. INTRINSIC LYαAND EXTREME ULTRAVIOLET SPECTRA OF K AND M DWARFS WITH EXOPLANETS The Astrophysical Journal 824 (2): 101 [10.3847/0004-637x/824/2/101]

Youngblood, A., A. Ginsburg, and J. Bally. 2016. THE ORION FINGERS: NEAR-IR SPECTRAL IMAGING OF AN EXPLOSIVE OUTFLOW The Astronomical Journal 151 (6): 173 [10.3847/0004-6256/151/6/173]

France, K., R. O. Loyd, A. Youngblood, et al. A. Brown, P. C. Schneider, S. L. Hawley, C. S. Froning, J. L. Linsky, A. Roberge, A. P. Buccino, J. R. Davenport, J. M. Fontenla, L. Kaltenegger, A. F. Kowalski, P. J. Mauas, Y. Miguel, S. Redfield, S. Rugheimer, F. Tian, M. C. Vieytes, L. M. Walkowicz, and K. L. Weisenburger. 2016. THE MUSCLES TREASURY SURVEY. I. MOTIVATION AND OVERVIEW The Astrophysical Journal 820 (2): 89 [10.3847/0004-637x/820/2/89]

Bally, J., A. Ginsburg, D. Silvia, and A. Youngblood. 2015. The Orion fingers: Near-IR adaptive optics imaging of an explosive protostellar outflow Astronomy & Astrophysics 579 A130 [10.1051/0004-6361/201425073]

Ginsburg, A., J. Bally, C. Battersby, et al. A. Youngblood, J. Darling, E. Rosolowsky, H. Arce, and M. E. Santos. 2015. The dense gas mass fraction in the W51 cloud and its protoclusters Astronomy & Astrophysics 573 A106 [10.1051/0004-6361/201424979]

Bally, J., A. Youngblood, and A. Ginsburg. 2012. THE SPINDLE: AN IRRADIATED DISK AND BENT PROTOSTELLAR JET IN ORION The Astrophysical Journal 756 (2): 137 [10.1088/0004-637x/756/2/137]