Search Results - "Cruz, Kelle"

EXPLORING THE ROLE OF SUB-MICRON-SIZED DUST GRAINS IN THE ATMOSPHERES OF RED L0-L6 DWARFS by Hiranaka, Kay, Cruz, Kelle L., Douglas, Stephanie T., Marley, Mark S., Baldassare, Vivienne F.

“…ABSTRACT We examine the hypothesis that the red near-infrared colors of some L dwarfs could be explained by a "dust haze" of small particles in their upper…”
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Evaluating Rotation Periods of M Dwarfs across the Ages by Popinchalk, Mark, Faherty, Jacqueline K., Kiman, Rocio, Gagné, Jonathan, Curtis, Jason L., Angus, Ruth, Cruz, Kelle L., Rice, Emily L.

“…Abstract In this work we examine M dwarf rotation rates at a range of ages to establish benchmarks for M dwarf gyrochronology. This work includes a sample of…”
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The Ultracool SpeXtroscopic Survey. I. Volume-limited Spectroscopic Sample and Luminosity Function of M7−L5 Ultracool Dwarfs by Bardalez Gagliuffi, Daniella C., Burgasser, Adam J., Schmidt, Sarah J., Theissen, Christopher, Gagné, Jonathan, Gillon, Michael, Sahlmann, Johannes, Faherty, Jacqueline K., Gelino, Christopher, Cruz, Kelle L., Skrzypek, Nathalie, Looper, Dagny

“…We present a volume-limited, spectroscopically verified sample of M7−L5 ultracool dwarfs (UCDs) within 25 pc. The sample contains 410 sources, of which 93%…”
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A Reanalysis of the Fundamental Parameters and Age of TRAPPIST-1 by Gonzales, Eileen C., Faherty, Jacqueline K., Gagné, Jonathan, Teske, Johanna, McWilliam, Andrew, Cruz, Kelle

“…Abstract We present the distance-calibrated spectral energy distribution (SED) of TRAPPIST-1 using a new medium-resolution ( R  ∼ 6000) near-infrared (NIR)…”
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THE BROWN DWARF KINEMATICS PROJECT (BDKP). III. PARALLAXES FOR 70 ULTRACOOL DWARFS by Faherty, Jacqueline K, Burgasser, Adam J, Walter, Frederick M, van der Bliek, Nicole, Shara, Michael M, Cruz, Kelle L, West, Andrew A, Vrba, Frederick J, Anglada-Escude, Guillem

“…We report parallax measurements for 70 ultracool dwarfs (UCDs) including 11 late-M, 32 L, and 27 T dwarfs. In this sample, 14 M and L dwarfs exhibit low…”
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wdwarfdate: A Python Package to Derive Bayesian Ages of White Dwarfs by Kiman, Rocio, Xu, Siyi, Faherty, Jacqueline K., Gagné, Jonathan, Angus, Ruth, Brandt, Timothy D., Casewell, Sarah L., Cruz, Kelle L.

“…Abstract White dwarfs have been successfully used as cosmochronometers in the literature; however, their reach has been limited in comparison to their…”
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Ultracool Dwarfs Observed with the Spitzer Infrared Spectrograph: Equatorial Latitudes in L Dwarf Atmospheres Are Cloudier by Suárez, Genaro, Vos, Johanna M., Metchev, Stanimir, Faherty, Jacqueline K., Cruz, Kelle

“…Abstract We report direct observational evidence for a latitudinal dependence of dust cloud opacity in ultracool dwarfs, indicating that equatorial latitudes…”
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Young Stars with SALT by Riedel, Adric R., Alam, Munazza K., Rice, Emily L., Cruz, Kelle L., Henry, Todd J.

“…Abstract We present a spectroscopic and kinematic analysis of 79 nearby M dwarfs in 77 systems. All of these dwarfs are low-proper-motion southern hemisphere…”
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KEPLER MONITORING OF AN L DWARF I. THE PHOTOMETRIC PERIOD AND WHITE LIGHT FLARES by Gizis, John E, Burgasser, Adam J, Berger, Edo, Williams, Peter K G, Vrba, Frederick J, Cruz, Kelle L, METCHEV, STANIMIR

“…We report on the results of 15 months of monitoring the nearby field L1 dwarf WISEP J190648.47+401106.8 (W1906+40) with the Kepler mission. Supporting…”
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SpeX Spectroscopy of Unresolved Very Low Mass Binaries. I. Identification of 17 Candidate Binaries Straddling the L Dwarf/T Dwarf Transition by Burgasser, Adam J, Cruz, Kelle L, Cushing, Michael, Gelino, Christopher R, Looper, Dagny L, Faherty, Jacqueline K, Kirkpatrick, J. Davy, Reid, I. Neill

“…We report the identification of 17 candidate brown dwarf binaries whose components straddle the L dwarf/T dwarf transition. These sources were culled from a…”
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Measuring Tiny Mass Accretion Rates Onto Young Brown Dwarfs by Herczeg, Gregory J, Cruz, Kelle L, Hillenbrand, Lynne A

“…We present low-resolution Keck I/LRIS spectra spanning from 3200 to 9000 A of nine young brown dwarfs and three low-mass stars in the TW Hya Association and in…”
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Subtle Signatures of Multiplicity in Late-type Dwarf Spectra: The Unresolved M8.5 + T5 Binary 2MASS J03202839–0446358 by Burgasser, Adam J, Liu, Michael C, Ireland, Michael J, Cruz, Kelle L, Dupuy, Trent J

“…Evidence is presented that 2MASS J03202839-0446358, a late-type dwarf with discrepant optical (M8:) and near-infrared (L1) spectral types, is an as-yet…”
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A SAMPLE OF VERY YOUNG FIELD L DWARFS AND IMPLICATIONS FOR THE BROWN DWARF LITHIUM TEST AT EARLY AGES by KIRKPATRICK, J. Davy, CRUZ, Kelle L, HILLENBRAND, Lynne A, STAUFFER, John R, BARMAN, Travis S, BURGASSER, Adam J, LOOPER, Dagny L, TINNEY, C. G, GELINO, Christopher R, LOWRANCE, Patrick J, LIEBERT, James, CARPENTER, John M

“…Using a large sample of optical spectra of late-type dwarfs, we identify a subset of late-M through L field dwarfs that, because of the presence of low-gravity…”
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Optical Spectroscopy of 2MASS Color-selected Ultracool Subdwarfs by Burgasser, Adam J, Cruz, Kelle L, Kirkpatrick, J. Davy

“…We present Gemini GMOS and Magellan LDSS-3 optical spectroscopy for seven ultracool subdwarf candidates color-selected from the Two Micron All Sky Survey. Five…”
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KEPLER MONITORING OF AN L DWARF. II. CLOUDS WITH MULTI-YEAR LIFETIMES by Gizis, John E., Dettman, Kyle G., Burgasser, Adam J., Camnasio, Sara, Alam, Munazza, Filippazzo, Joseph C., Cruz, Kelle L., Metchev, Stanimir, Berger, Edo, Williams, Peter K. G.

“…ABSTRACT We present Kepler, Spitzer Space Telescope, Gemini-North, MMT, and Kitt Peak observations of the L1 dwarf WISEP J190648.47+401106.8. We find that the…”
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Clouds, Gravity, and Metallicity in Blue L Dwarfs: The Case of 2MASS J11263991–5003550 by Burgasser, Adam J, Looper, Dagny L, Kirkpatrick, J. Davy, Cruz, Kelle L, Swift, Brandon J

“…Optical and near-infrared spectroscopy of the newly discovered peculiar L dwarf 2MASS J11263991-5003550 are presented. Folkes et al. classified this source as…”
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2MASS J06164006–6407194: The First Outer Halo L Subdwarf by Cushing, Michael C, Looper, Dagny, Burgasser, Adam J, Kirkpatrick, J. Davy, Faherty, Jacqueline, Cruz, Kelle L, Sweet, Anne, Sanderson, Robyn E

“…We present the serendipitous discovery of an L subdwarf in the Two Micron All Sky Survey (2MASS) J06164006-6407194, in a search of the 2MASS for T dwarfs. Its…”
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2MASS 22344161+4041387AB: A Wide, Young, Accreting, Low-Mass Binary in the LkHα233 Group by Allers, K. N, Liu, Michael C, Shkolnik, Evgenya, Cushing, Michael C, Dupuy, Trent J, Mathews, Geoffrey S, Reid, I. Neill, Cruz, Kelle L, Vacca, W. D

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Discovery of Two Very Low Mass Binaries: Final Results of an Adaptive Optics Survey of Nearby M6.0-M7.5 Stars by Siegler, Nick, Close, Laird M, Cruz, Kelle L, Martín, Eduardo L, Reid, I. Neill

“…We present updated results of a high-resolution, magnitude-limited (K sub(s) < 12 mag) imaging survey of nearby low-mass M6.0-M7.5 field stars. The…”
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2MASS J05185995–2828372: Discovery of an Unresolved L/T Binary by Cruz, Kelle L, Burgasser, Adam J, Reid, I. Neill, Liebert, James

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