Three-dimensional SPH Simulations of FU Orionis Star Flares in the Clumpy Accretion Model by Tatiana V. Demidova, Vladimir P. Grinin

“…Such structures are usually associated with the existence in the vicinity of a star of a massive body (planet or brown dwarf), whose orbit is inclined relative to the plane of the disk. …”
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Near-infrared InGaAs detectors for background-limited imaging and photometry by Sullivan, Peter W., Simcoe, Robert A., Croll, Bryce J.

“…InGaAs detectors are also applicable to other branches of near-infrared time-domain astronomy, ranging from brown dwarf weather to gravitational wave follow-up.…”
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New low-mass eclipsing binary systems in Praesepe discovered by K2 by Gillen, E, Hillenbrand, L, David, T, Aigrain, S, Rebull, L, Stauffer, J, Cody, A, Queloz, D

“…The fourth system (AD 3116) comprises a brown dwarf transiting a mid M-dwarf, which is the first such system discovered in a sub-Gyr open cluster. …”

The Gemini Deep Planet Survey by Lafreniere, D, Doyon, R, Marois, C, Nadeau, D, Oppenheimer, B, Roche, P, Rigaut, F, Graham, JR, Jayawardhana, R, Johnstone, D, Kalas, P, Macintosh, B, Racine, R

“…We present the results of the Gemini Deep Planet Survey, a near-infrared adaptive optics search for giant planets and brown dwarfs around 85 nearby young stars. The observations were obtained with the Altair adaptive optics sys- tem at the Gemini North telescope, and angular differential imaging was used to suppress the speckle noise of the central star. …”

The Census of Exoplanets in Visual Binaries: Population Trends from a Volume-Limited Gaia DR2 and Literature Search by Clémence Fontanive, Daniella Bardalez Gagliuffi

“…We present results from an extensive search in the literature and Gaia DR2 for visual co-moving binary companions to stars hosting exoplanets and brown dwarfs within 200 pc. We found 218 planet hosts out of the 938 in our sample to be part of multiple-star systems, with 10 newly discovered binaries and 2 new tertiary stellar components. …”
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Productivity of Three Dwarf Kopyor Coconut Varieties from Pati, Central Java, Indonesia by Ismail Maskromo, Sudarsono

“…Three varieties of Pati Dwarf Kopyor coconut, namely: Kopyor Green Dwarf, Kopyor Brown Dwarf and Kopyor Yellow Dwarf out of six potential varieties have been officially released as local superior varieties by the Minister of Agriculture, Republic of Indonesia at the end of 2010. …”
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The Impact of Bayesian Hyperpriors on the Population-level Eccentricity Distribution of Imaged Planets by Vighnesh Nagpal, Sarah Blunt, Brendan P. Bowler, Trent J. Dupuy, Eric L. Nielsen, Jason J. Wang

“…Here, we study the effect of hyperpriors on the population-level eccentricity distributions inferred for the sample of directly imaged substellar companions (brown dwarfs and cold Jupiters) from hierarchical Bayesian modeling (HBM). …”
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Sgr A* Spin and Mass Estimates through the Detection of an Extremely Large Mass-ratio Inspiral by Verónica Vázquez-Aceves, Yiren Lin, Alejandro Torres-Orjuela

“…In the present work, we show that detecting the gravitational waves (GWs) emitted by a brown dwarf inspiraling around Sgr A* will allow us to measure the mass and the spin of Sgr A* with unprecedented accuracy. …”
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The TESS Phase Curve of KELT-1b Suggests a High Dayside Albedo by Beatty, Thomas G, Wong, Ian, Fetherolf, Tara, Line, Michael R, Shporer, Avi, Stassun, Keivan G, Ricker, George R, Seager, Sara, Winn, Joshua N, Jenkins, Jon M, Louie, Dana R, Schlieder, Joshua E, Sha, Lizhou, Tenenbaum, Peter, Yahalomi, Daniel A

“…We measured the optical phase curve of the transiting brown dwarf KELT-1b (TOI 1476) using data from the TESS spacecraft. …”
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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 unresolved stellar/brown dwarf binary with late-type M dwarf and T dwarf components. …”
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Constraining the period of the ringed secondary companion to the young star J1407 with photographic plates by Mentel, RT, Kenworthy, MA, Cameron, DA, Scott, EL, Mellon, SN, Hudec, R, Birkby, JL, Mamajek, EE, Schrimpf, A, Reichart, DE, Haislip, JB, Kouprianov, VV, Hambsch, F-J, Tan, T-G, Hills, K, Grindlay, JE, Rodriguez, JE, Lund, MB, Kuhn, RB

“…These limits are still marginally consistent with a large Hill sphere filling ring system surrounding a brown dwarf companion in a bound elliptical orbit about J1407. …”

The Gemini NICI Planet-Finding Campaign: The Frequency of Planets around Young Moving Group Stars by Biller, B, Liu, M, Wahhaj, Z, Nielsen, E, Hayward, T, Males, JR, Skemer, A, Close, L, Chun, M, Ftaclas, C, Clarke, F, Thatte, N, Shkolnik, E, Reid, I, Hartung, M, Boss, A, Lin, D, Alencar, S, Pino, E, Gregorio-Hetem, J, Toomey, D

“…Four co-moving companions of brown dwarf or stellar mass were discovered in this moving group sample: PZ Tel B (36+-6 MJup, 16.4+-1.0 AU, Biller et al. 2010), CD -35 2722B (31+-8 MJup, 67+-4 AU, Wahhaj et al. 2011), HD 12894B (0.46+-0.08 MSun, 15.7+-1.0 AU), and BD+07 1919C (0.20+-0.03 MSun, 12.5+-1.4 AU). …”

The galaxy luminosity function at z ≃ 6 and evidence for rapid evolution in the bright end from z ≃ 7 to 5 by Bowler, R, Dunlop, J, McLure, R, McCracken, H, Milvang-Jensen, B, Furusawa, H, Taniguchi, Y, Le Fèvre, O, Fynbo, J, Jarvis, M, Häußler, B

“…We show that the expected contamination rate of our initial sample by cool Galactic brown dwarfs is ≲3 per cent and demonstrate that they can be effectively removed by fitting brown dwarf spectral templates to the photometry. …”

Hot subdwarf stars in close-up view I. Rotational properties of subdwarf B stars in close binary systems and nature of their unseen companions by Geier, S, Heber, U, Podsiadlowski, P, Edelmann, H, Napiwotzki, R, Kupfer, T, Mueller, S

“…One binary may have a brown dwarf companion. The unseen companions of nine sdBs are white dwarfs with typical masses. …”

Keragaan vegetatif dan generatif pada fase pembungaan awal kelapa Genjah kopyor asal kultur embrio di Bogor, Jawa Barat by M. Eko Riyo Bayu Prasetyo, Imron Riyadi, Sumaryono

“…When the first flowers appeared, Kopyor Brown Dwarf (KBD) had 14.6 fronds, while Kopyor Yellow Dwarf (KYD) and Kopyor Green Dwarf (KGD) had 15.5 and 17.1 fronds respectively. …”
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KIC 7177553: A QUADRUPLE SYSTEM OF TWO CLOSE BINARIES by Lehmann, H., Borkovits, T., Ngo, H., Mawet, D., Csizmadia, Sz., Rappaport, Saul A., Forgacs-Dajka, E.

“…The implied mass of the third body is that of a super-Jupiter, but below the mass of a brown dwarf. We therefore embarked on a radial velocity (RV) study of this binary to determine its system configuration and to check the hypothesis that it hosts a giant planet. …”
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Simultaneous Multiwavelength Variability Characterization of the Free-floating Planetary-mass Object PSO J318.5−22 by Biller, Beth A., Vos, Johanna, Buenzli, Esther, Allers, Katelyn, Bonnefoy, Mickaël, Charnay, Benjamin, Bézard, Bruno, Allard, France, Homeier, Derek, Bonavita, Mariangela, Brandner, Wolfgang, Crossfield, Ian Jm, Dupuy, Trent, Henning, Thomas, Kopytova, Taisiya, Liu, Michael C., Manjavacas, Elena, Schlieder, Joshua

“…We measure peak-to-trough variability amplitudes of 3.4% ± 0.1% for Spitzer Channel 2 and 4.4%-5.8% (typical 68% confidence errors of ∼0.3%) in the near-IR bands (1.07-1.67 μm) covered by the WFC3 G141 prism - the mid-IR variability amplitude for PSO J318.5-22 is one of the highest variability amplitudes measured in the mid-IR for any brown dwarf or planetary-mass object. Additionally, we detect phase offsets ranging from 200° to 210° (typical error of ∼4°) between synthesized near-IR light curves and the Spitzer mid-IR light curve, likely indicating depth-dependent longitudinal atmospheric structure in this atmosphere. …”
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The TESS Phase Curve of KELT-1b Suggests a High Dayside Albedo by Beatty, Thomas G, Wong, Ian, Fetherolf, Tara, Line, Michael R, Shporer, Avi, Stassun, Keivan G, Ricker, George R, Seager, Sara, Winn, Joshua N, Jenkins, Jon M, Louie, Dana R, Schlieder, Joshua E, Sha, Lizhou, Tenenbaum, Peter, Yahalomi, Daniel A

“…We measured the optical phase curve of the transiting brown dwarf KELT-1b (TOI 1476) using data from the TESS spacecraft. …”
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FUNDAMENTAL PROPERTIES OF KEPLER PLANET-CANDIDATE HOST STARS USING ASTEROSEISMOLOGY by Sanchis Ojeda, Roberto

“…Using the revised stellar properties, we recalculate the radii for 107 planet candidates in our sample, and comment on candidates for which the radii change from a previously giant-planet/brown-dwarf/stellar regime to a sub-Jupiter size or vice versa. …”
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Exoplanet discoveries with the CoRoT space observatory by Lammer, H, Dvorak, R, Deleuil, M, Barge, P, Deeg, H, Moutou, C, Erikson, A, Csizmadia, S, Tingley, B, Bruntt, H, Havel, M, Aigrain, S, Almenara, J, Alonso, R, Auvergne, M, Baglin, A, Barbieri, M, Benz, W, Bonomo, A, Borde, P, Bouchy, F, Cabrera, J, Carone, L, Carpano, S, Ciardi, D

“…Discovered exoplanets such as CoRoT-3b populate the brown dwarf desert and close the gap of measured physical properties between usual gas giants and very low mass stars. …”