• The Mid-Infrared Narrow-Line Baldwin Effect Revealed By Spitzer 

      Keremedjiev, Mark; Hao, Lei; Charmandaris, Vassilis (2009-01)
      We present our discovery of a narrow-line Baldwin effect, an anticorrelation between the equivalent width (EW) of a line and the flux of the associated continuum, in 5-20 mu m mid-infrared (mid-IR) lines from a sample of ...
    • Multinuclear Cd-2, Cd-3 and 1-D Framework Structures of Cd(II) Schiff Base Complexes 

      Agapiou, Kyriacos; Mejia, Michelle L.; Yang, Xiaoping; Holliday, Bradley J. (2009-04)
      Reactions of the "salen" type Schiff bases H2L1 and H2L2 with Cd(OAc)(2)center dot 2H(2)O gave complexes with Cd-2 and Cd-3 cores and an extended 1-D framework architecture [H2L1 = N,N'-(1,2-phenylenyl)bis(5-bromo-2-hydr ...
    • The Near-Ultraviolet Luminosity Function Of Young, Early M-Type Dwarf Stars 

      Ansdell, Megan; Gaidos, Eric; Mann, Andrew W.; Lepine, Sebastien; James, David; Buccino, Andrea; Baranec, Christoph; Law, Nicolas M.; Riddle, Reed; Mauas, Pablo; Petrucci, Romina (2015-01)
      Planets orbiting within the close-in habitable zones of M dwarf stars will be exposed to elevated high-energy radiation driven by strong magnetohydrodynamic dynamos during stellar youth. Near-ultraviolet (NUV) irradiation ...
    • Optical Observations Of The Type Ic Supernova 2007 gr In NGC 1058 

      Chen, Juncheng; Wang, Xiaofeng; Ganeshalingam, Mohan; Silverman, Jeffrey M.; Filippenko, Alexei V.; Li, Weidong; Chornock, Ryan; Li, Junzheng; Steele, Thea (2014-08)
      We present extensive optical observations of the normal Type Ic supernova (SN) 2007gr, spanning from about one week before maximum light to more than one year thereafter. The optical light and color curves of SN 2007gr are ...
    • Oxygen Metallicity Determinations From Optical Emission Lines In Early-Type Galaxies 

      Athey, Alex E.; Bregman, Joel N. (2009-05)
      We measured the oxygen abundances of the warm (T similar to 10(4) K) phase of gas in seven early-type galaxies through long-slit observations. A template spectra was constructed from galaxies void of warm gas and subtracted ...
    • Panchromatic Estimation Of Star Formation Rates In Bzk Galaxies At 1 < Z < 3 

      Kurczynski, Peter; Gawiser, Eric; Huynh, Minh; Ivison, Rob J.; Treister, Ezequiel; Smail, Ian; Blanc, Guillermo A.; Cardamone, Carolin N.; Greve, Thomas R.; Schinnerer, Eva; Urry, Meg; van der Werf, Paul (2012-05)
      We determine star formation rates (SFRs) in a sample of color-selected, star-forming (sBzK) galaxies (K-AB < 21.8) in the Extended Chandra Deep Field-South. To identify and avoid active galactic nuclei, we use X-ray, IRAC ...
    • Photometry And Spectroscopy Of GRB 060526: A Detailed Study Of The Afterglow And Host Galaxy Of A Z=3.2 Gamma-Ray Burst 

      Thone, C. C.; Kann, D. A.; Johannesson, G.; Selj, J. H.; Jaunsen, A. O.; Fynbo, J. P. U.; Akerlof, C. W.; Baliyan, K. S.; Bartolini, C.; Bikmaev, I. F.; Bloom, J. S.; Burenin, R. A.; Cobb, B. E.; Covino, S.; Curran, P. A.; Dahle, H.; Ferrero, A.; Foley, S.; French, J.; Fruchter, A. S.; Ganesh, S.; Graham, J. F.; Greco, G.; Guarnieri, A.; Hanlon, L.; Hjorth, J.; Ibrahimov, M.; Israel, G. L.; Jakobsson, P.; Jelinek, M.; Jensen, B. L.; Jorgensen, U. G.; Khamitov, I. M.; Koch, T. S.; Levan, A. J.; Malesani, D.; Masetti, N.; Meehan, S.; Melady, G.; Nanni, D.; Naranen, J.; Pakstiene, E.; Pavlinsky, M. N.; Perley, D. A.; Piccioni, A.; Pizzichini, G.; Pozanenko, A.; Roming, P. W. A.; Rujopakarn, W.; Rumyantsev, V.; Rykoff, E. S.; Sharapov, D.; Starr, D.; Sunyaev, R. A.; Swan, H.; Tanvir, N. R.; Terra, F.; Postigo, A. D.; Vreeswijk, P. M.; Wilson, A. C.; Yost, S. A.; Yuan, F. (2010)
      Aims. With this paper we want to investigate the highly variable afterglow light curve and environment of gamma-ray burst (GRB) 060526 at z = 3.221. Methods. We present one of the largest photometric datasets ever obtained ...
    • Recurrent Novae in M31 

      Shafter, A. W.; Henze, M.; Rector, T. A.; Schweizer, F.; Hornoch, K.; Orio, M.; Pietsch, W.; Darnley, M. J.; Williams, S. C.; Bode, M. F.; Bryan, J. (2015-02)
      The reported positions of 964 suspected nova eruptions in M31 recorded through the end of calendar year 2013 have been compared in order to identify recurrent nova (RN) candidates. To pass the initial screen and qualify ...
    • The Shape Of Cas A 

      Wheeler, J. Craig; Maund, Justyn R.; Couch, Sean M. (2008-04)
      On the basis of optical, IR, and X-ray studies of CasA, we propose a geometry for the remnant based on a " jet-induced'' scenario with significant systematic departures from axial symmetry. In this model, the main jet axis ...
    • SN 2008In-Bridging The Gap Between Normal And Faint Supernovae Of Type IIp 

      Roy, Rupak; Kumar, Brijesh; Benetti, Stefano; Pastorello, Andrea; Yuan, Fang; Brown, Peter J.; Immler, Stefan; Fatkhullin, Timur A.; Moskvitin, Alexander S.; Maund, Justyn; Akerlof, Carl W.; Wheeler, J. Craig; Sokolov, Vladimir V.; Quimby, Rorbert M.; Bufano, Filomena; Kumar, Brajesh; Misra, Kuntal; Pandey, S. B.; Elias-Rosa, Nancy; Roming, Peter W. A.; Sagar, Ram (2011-08)
      We present optical photometric and low-resolution spectroscopic observations of the Type II plateau supernova (SN) 2008in, which occurred in the outskirts of the nearly face-on spiral galaxy M61. Photometric data in the ...
    • The Spitzer Survey of Interstellar Clouds in the Gould Belt. III. A Multi-Wavelength View of Corona Australis 

      Peterson, Dawn E.; Garatti, Alessio Caratti O.; Bourke, Tyler L.; Forbrich, Jan; Gutermuth, Robert A.; Jorgensen, Jes K.; Allen, Lori E.; Patten, Brian M.; Dunham, Michael M.; Harvey, Paul M.; Merin, Bruno; Chapman, Nicholas L.; Cieza, Lucas A.; Huard, Tracy L.; Knez, Claudia; Prager, Brian; Evans, Neal J., II (2011-06)
      We present Spitzer Space Telescope IRAC and MIPS observations of a 0.85 deg(2) field including the Corona Australis (CrA) star-forming region. At a distance of 130 pc, CrA is one of the closest regions known to be actively ...
    • The Taurus Spitzer Survey: New Candidate Taurus Members Selected Using Sensitive Mid-Infrared Photometry 

      Rebull, L. M.; Padgett, D. L.; McCabe, C. E.; Hillenbrand, L. A.; Stapelfeldt, K. R.; Noriega-Crespo, A.; Carey, S. J.; Brooke, T.; Huard, T.; Terebey, S.; Audard, M.; Monin, J. L.; Fukagawa, M.; Gudel, M.; Knapp, G. R.; Menard, Francois; Allen, L. E.; Angione, J. R.; Baldovin-Saavedra, C.; Bouvier, J.; Briggs, K.; Dougados, C.; Evans, Neal J., II; Flagey, N.; Guieu, S.; Grosso, N.; Glauser, A. M.; Harvey, Paul; Hines, D.; Latter, W. B.; Skinner, S. L.; Strom, S.; Tromp, J.; Wolf, Sebastian (2010-02)
      We report on the properties of pre-main-sequence objects in the Taurus molecular clouds as observed in seven mid-and far-infrared bands with the Spitzer Space Telescope. There are 215 previously identified members of the ...
    • The Transitional Stripped-Envelope Sn 2008Ax: Spectral Evolution And Evidence For Large Asphericity 

      Chornock, Ryan; Filippenko, Alexei V.; Li, W.; Marion, G. H.; Foley, Ryan J.; Modjaz, M.; Rafelski, M.; Becker, G. D.; de Vries, W. H.; Garnavich, Peter; Jorgenson, R. A.; Lynch, D. K.; Malec, A. L.; Moran, E. C.; Murphy, M. T.; Rudy, R. J.; Russell, R. W.; Silverman, Jeffrey M.; Steele, Thea N.; Stockton, A.; Wolfe, A. M.; Woodward, C. E. (2011-09)
      Supernova (SN) 2008ax in NGC 4490 was discovered within hours after shock breakout, presenting the rare opportunity to study a core-collapse SN beginning with the initial envelope-cooling phase immediately following shock ...
    • Type IIb Supernova Sn 2011dh: Spectra And Photometry From The Ultraviolet To The Near-Infrared 

      Marion, G. H.; Vinko, Jozsef; Kirshner, Robert P.; Foley, Ryan J.; Berlind, Perry; Bieryla, Allyson; Bloom, Joshua S.; Calkins, Michael L.; Challis, Peter; Chevalier, Roger A.; Chornock, Ryan; Culliton, Chris; Curtis, Jason L.; Esquerdo, Gilbert A.; Everett, Mark E.; Falco, Emilio E.; France, Kevin; Fransson, Claes; Friedman, Andrew S.; Garnavich, Peter; Leibundgut, Bruno; Meyer, Samuel; Smith, Nathan; Soderberg, Alicia M.; Sollerman, Jesper; Starr, Dan L.; Szklenar, Tamas; Takats, Katalin; Wheeler, J. Craig (2014-02)
      We report spectroscopic and photometric observations of the Type IIb SN 201 ldh obtained between 4 and 34 days after the estimated date of explosion (May 31.5 UT). The data cover a wide wavelength range from 2000 angstrom ...
    • Ultraviolet Spectroscopy Of Type IIb Supernovae: Diversity And The Impact Of Circumstellar Material 

      Ben-Ami, Sagi; Hachinger, Stephan; Gal-Yam, Avishay; Mazzali, Paolo A.; Filippenko, Alexei V.; Horesh, Assaf; Matheson, Thomas; Modjaz, Maryam; Sauer, Daniel N.; Silverman, Jeffrey M.; Smith, Nathan; Yaron, Ofer (2015-04)
      We present new Hubble Space Telescope (HST) multi-epoch ultraviolet (UV) spectra of the bright Type IIb SN 2013df, and undertake a comprehensive analysis of the set of four SNe IIb for which HST UV spectra are available ...
    • An Unexpected Discovery In The Rich Open Cluster NGC 6819 Using XMM-Newton 

      Gosnell, Natalie M.; Pooley, David; Geller, Aaron M.; Kalirai, Jason; Mathieu, Robert D.; Frinchaboy, Peter; Ramirez-Ruiz, Enrico (2012-01)
      We present the first study of the X-ray population of the intermediate-age rich open cluster NGC 6819 using the XMM-Newton Observatory. In the past decade, Chandra X-ray observations have shown a relationship between the ...
    • The Young, Massive, Star Cluster Sandage-96 After The Explosion Of Supernova 2004dj In NGC 2403 

      Vinko, Jozsef; Sarneczky, K.; Balog, Z.; Immler, S.; Sugerman, B. E. K.; Brown, Peter J.; Misselt, K.; Szabo, G. M.; Csizmadia, S.; Kun, M.; Klagyivik, P.; Foley, Ryan J.; Filippenko, Alexei V.; Csak, B.; Kiss, L. L. (2009-04)
      The bright Type II-plateau supernova (SN) 2004dj occurred within the young, massive stellar cluster Sandage-96 in a spiral arm of NGC 2403. New multiwavelength observations obtained with several ground-based and space-based ...