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  • Discovery of an Edge-on Circumstellar Debris Disk around BD+45° 598: A Newly Identified Member of the ß Pictoris Moving Group 
    Hinkley, Sasha; Matthews, Elisabeth C.; Lefevre, Charlene; Lestrade, Jean-Francois; Kennedy, Grant; Mawet, Dimitri; Stapelfeldt, Karl R.; Ray, Shrishmoy; Mamajek, Eric; Bowler, Brendan P.; Wilner, David; Williams, Jonathan; Ansdell, Megan; Wyatt, Mark; Lau, Alexis; Phillips, Mark W.; Fernandez, Jorge; Gagne, Jonathan; Bubb, Emma; Sutlieff, Ben J.; Wilson, Thomas J. G.; Matthews, Brenda; Ngo, Henry; Piskorz, Danielle; Crepp, Justin R.; Gonzalez, Erica; Mann, Andrew W.; Mace, Gregory (2021)
    We report the discovery of a circumstellar debris disk viewed nearly edge-on and associated with the young, K1 star BD+45 degrees 598 using high-contrast imaging at 2.2 mu m obtained at the W.M. Keck Observatory. We detect ...
  • Discovery of an Exotic Egg Parasitoid of the Brown Marmorated Stink Bug, Halyomorpha halys (Stal) in the Pacific Northwest 
    Milnes, Joshua M.; Wiman, Nik G.; Talamas, Elijah J.; Brunner, Jay F.; Hoelmer, Kim A.; Buffington, Matthew L.; Beers, Elizabeth H. (2016)
  • Discovery of an Expanding Molecular Bubble in Orion BN/KL 
    Zapata, Luis A.; Loinard, Laurent; Schmid-Burgk, Johannes; Rodríguez, Luis F.; Ho, Paul T. P.; Patel, Nimesh A. (2011)
    During their infancy, stars are well known to expel matter violently in the form of well-defined, collimated outflows. A fairly unique exception is found in the Orion Becklin-Neugebauer/Kleinmann-Low star-forming region ...
  • Discovery of an Extremely Luminous Dust-obscured Galaxy Observed with SDSS, WISE, JCMT, and SMA 
    Toba, Yoshiki; Ueda, Junko; Lim, Chen-Fatt; Wang, Wei-Hao; Nagao, Tohru; Chang, Yu-Yen; Saito, Toshiki; Kawabe, Ryohei (2018)
    We present the discovery of an extremely luminous dust-obscured galaxy (DOG) at z <SUB>spec</SUB> = 3.703, WISE J101326.25+611220.1. This DOG is selected as a candidate of extremely luminous infrared (IR) galaxies based ...
  • Discovery of an H I Counterpart to the Extended Tail of Mira 
    Matthews, L. D.; Libert, Y.; Gérard, E.; Le Bertre, T.; Reid, Mark J. (2008)
  • Discovery of an OB runaway star inside SNR S147 
    Dinçel, B.; Neuhäuser, R.; Yerli, S. K.; Ankay, A.; Tetzlaff, N.; Torres, G.; Mugrauer, M. (2015)
    We present first results of a long-term study: Searching for OB-type runaway stars inside supernova remnants (SNRs). We identified spectral types and measured radial velocities by optical spectroscopic observations and we ...
  • Discovery of an overwintering adult female of Culiseta annulata in Baltimore 
    Faran, M. E.; Bailey, C. L. (1980)
  • Discovery of an Ultramassive Pulsating White Dwarf 
    Hermes, J. J.; Kepler, S. O.; Castanheira, Barbara G.; Gianninas, A.; Winget, D. E.; Montgomery, M. H.; Brown, Warren R.; Harrold, Samuel T. (2013)
    We announce the discovery of the most massive pulsating hydrogen-atmosphere white dwarf (WD) ever discovered, GD 518. Model atmosphere fits to the optical spectrum of this star show it is a 12, 030 ± 210 K WD with a log g ...
  • Discovery of an Ultraviolet Counterpart to an Ultrafast X-Ray Outflow in the Quasar PG 1211+143 
    Kriss, Gerard A.; Lee, Julia C.; Danehkar, Ashkbiz; Nowak, Michael A.; Fang, Taotao; Hardcastle, Martin J.; Neilsen, Joseph; Young, Andrew (2018)
    We observed the quasar PG 1211+143 using the Cosmic Origins Spectrograph on the Hubble Space Telescope in 2015 April as part of a joint campaign with the Chandra X-ray Observatory and the Jansky Very Large Array. Our ...
  • Discovery of an unusual new radio source in the star-forming galaxy M82: faint supernova, supermassive black hole or an extragalactic microquasar? 
    Muxlow, T. W. B.; Beswick, R. J.; Garrington, S. T.; Pedlar, A.; Fenech, D. M.; Argo, M. K.; van Eymeren, J.; Ward, M.; Zezas, Andreas; Brunthaler, A. (2010)
    A faint new radio source has been detected in the nuclear region of the starburst galaxy M82 using Multi-Element Radio-Linked Interferometer Network radio observations designed to monitor the flux density evolution of the ...
  • The Discovery of an X-Ray/UV Stellar Flare from the Late-K/Early-M Dwarf LMC 335 
    Tsang, B. T. H.; Pun, C. S. J.; Di Stefano, R.; Li, K. L.; Kong, A. K. H. (2012)
    We report the discovery of an X-ray/UV stellar flare from the source LMC 335, captured by XMM-Newton in the field of the Large Magellanic Cloud. The flare event was recorded continuously in X-ray for its first 10 hr from ...
  • The Discovery of Binary White Dwarfs that will Merge Within 500 Myr 
    Kilic, Mukremin; Brown, Warren R.; Allende Prieto, Carlos; Kenyon, Scott J.; Panei, J. A. (2010)
    We present radial velocity observations of four extremely low-mass (0.2 M <SUB>sun</SUB>) white dwarfs (WDs). All four stars show peak-to-peak radial velocity variations of 540-710 km s<SUP>–1</SUP> with 1.0-5.9 hr periods. ...
  • Discovery of bloodsucking Psychodidae in America 
    Coquillett, D. W. (1907)
  • Discovery of Candidate H<SUB>2</SUB>O Disk Masers in Active Galactic Nuclei and Estimations Of Centripetal Accelerations 
    Greenhill, Lincoln J.; Kondratko, Paul T.; Moran, James M.; Tilak, Avanti (2009)
  • Discovery of carbon radio recombination lines in absorption towards Cygnus A 
    Oonk, J. B. R.; van Weeren, R. J.; Salgado, F.; Morabito, L. K.; Tielens, A. G. G. M.; Rottgering, H. J. A.; Asgekar, A.; White, G. J.; Alexov, A.; Anderson, J.; Avruch, I. M.; Batejat, F.; Beck, R.; Bell, M. E.; van Bemmel, I.; Bentum, M. J.; Bernardi, G.; Best, P.; Bonafede, A.; Breitling, F.; Brentjens, M.; Broderick, J.; Brüggen, M.; Butcher, H. R.; Ciardi, B.; Conway, J. E.; Corstanje, A.; de Gasperin, F.; de Geus, E.; de Vos, M.; Duscha, S.; Eislöffel, J.; Engels, D.; van Enst, J.; Falcke, H.; Fallows, R. A.; Fender, R.; Ferrari, C.; Frieswijk, W.; Garrett, M. A.; Grießmeier, J.; Hamaker, J. P.; Hassall, T. E.; Heald, G.; Hessels, J. W. T.; Hoeft, M.; Horneffer, A.; van der Horst, A.; Iacobelli, M.; Jackson, N. J.; Juette, E.; Karastergiou, A.; Klijn, W.; Kohler, J.; Kondratiev, V. I.; Kramer, M.; Kuniyoshi, M.; Kuper, G.; van Leeuwen, J.; Maat, P.; Macario, G.; Mann, G.; Markoff, S.; McKean, J. P.; Mevius, M.; Miller-Jones, J. C. A.; Mol, J. D.; Mulcahy, D. D.; Munk, H.; Norden, M. J.; Orru, E.; Paas, H.; Pandey-Pommier, M.; Pandey, V. N.; Pizzo, R.; Polatidis, A. G.; Reich, W.; Scaife, A. M. M.; Schoenmakers, A.; Schwarz, D.; Shulevski, A.; Sluman, J.; Smirnov, O.; Sobey, C.; Stappers, B. W.; Steinmetz, M.; Swinbank, J.; Tagger, M.; Tang, Y.; Tasse, C.; Veen, S. ter; Thoudam, S.; Toribio, C.; van Nieuwpoort, R.; Vermeulen, R.; Vocks, C.; Vogt, C.; Wijers, R. A. M. J.; Wise, M. W.; Wucknitz, O.; Yatawatta, S.; Zarka, P.; Zensus, A. (2014)
    We present the first detection of carbon radio recombination line absorption along the line of sight to Cygnus A. The observations were carried out with the Low Frequency Array in the 33-57 MHz range. These low-frequency ...
  • Discovery of Carbon Radio Recombination Lines in M82 
    Morabito, Leah K.; Oonk, J. B. R.; Salgado, Francisco; Toribio, M. Carmen; Röttgering, H. J. A.; Tielens, A. G. G. M.; Beck, Rainer; Adebahr, Björn; Best, Philip; Beswick, Robert; Bonafede, Annalisa; Brunetti, Gianfranco; Brüggen, Marcus; Chyzy, Krzysztof T.; Conway, J. E.; van Driel, Wim; Gregson, Jonathan; Haverkorn, Marijke; Heald, George; Horellou, Cathy; Horneffer, Andreas; Iacobelli, Marco; Jarvis, Matt J.; Marti-Vidal, Ivan; Miley, George; Mulcahy, D. D.; Orrú, Emanuela; Pizzo, Roberto; Scaife, A. M. M.; Varenius, Eskil; van Weeren, Reinout J.; White, Glenn J.; Wise, Michael W. (2014)
    Carbon radio recombination lines (RRLs) at low frequencies (lsim 500 MHz) trace the cold, diffuse phase of the interstellar medium, which is otherwise difficult to observe. We present the detection of carbon RRLs in ...
  • Discovery of challacolloite, an uncommon chloride, on a fifteenth-century polychrome terracotta relief by Michele da Firenze 
    Bezur, Anikó; Kavich, Gwénaëlle; Stenger, Jens; Torok, Elena; Snow, Carol (2015)
  • A discovery of chloride of potassium in the Earth 
    Smithson, James (1823)
  • The Discovery of Cometary Activity in Near-Earth Asteroid (3552) Don Quixote 
    Mommert, Michael; Hora, Joseph L.; Harris, Alan W.; Reach, William T.; Emery, Joshua P.; Thomas, Cristina A.; Mueller, Michael; Cruikshank, Dale P.; Trilling, David E.; Delbo, Marco; Smith, Howard A. (2014)
    The near-Earth object (NEO) population, which mainly consists of fragments from collisions between asteroids in the main asteroid belt, is thought to include contributions from short-period comets as well. One of the most ...
  • Discovery of Crepidodera bella Parry (Coleoptera: Chrysomelidae: Alticini) in Maryland and Redescription 
    Seago, A.; Lingafelter, Steven W. (2003)

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