Browsing FAS Scholarly Articles by Title

Now showing items 7361-7380 of 18296

    • Hubble Space Telescope Spectroscopy of Spot 1 on the Circumstellar Ring of SN 1987A 

      Michael, Eli; McCray, Richard; Pun, C. J.; Garnavich, Peter; Challis, Peter; Kirshner, Robert P.; Raymond, John; Borkowski, Kazimierz; Chevalier, Roger; Filippenko, Alexei V.; Fransson, Claes; Lundqvist, Peter; Panagia, Nino; Phillips, M. M.; Sonneborn, George; Suntzeff, Nicholas B.; Wang, Lifan; Wheeler, and Craig (American Astronomical Society, 2000)
      We present ultraviolet and optical spectra of the first bright spot (P.A. = 29 degrees) on SN 1987A's equatorial circumstellar ring taken with the Space Telescope Imaging Spectrograph. We interpret this spot as the emission ...

    • Hubble Space Telescope Spectrum of SN 1987A at an Age of 8 Years: Radioactive Luminescence of Cool Gas 

      Chugai, Nikolai N.; Chevalier, Roger A.; Kirshner, Robert P.; Challis, Peter M. (American Astronomical Society, 1997)

    • Hubble Space Telescope time-series photometry of the planetary transit of HD 189733: no moon, no rings, starspots 

      Pont, F.; Gilliland, R. L.; Moutou, C.; Charbonneau, D.; Bouchy, F.; Brown, T. M.; Mayor, M.; Queloz, D.; Santos, N.; Udry, S. (EDP Sciences, 2007)
      We monitored three transits of the giant gas planet around the nearby K dwarf HD 189733 with the ACS camera on the Hubble Space Telescope. The resulting very-high accuracy lightcurve ( signal-to-noise ratio near 15 000 on ...

    • Hubble Space Telescope Time‐Series Photometry of the Transiting Planet of HD 209458 

      Brown, Timothy M.; Charbonneau, David; Gilliland, Ronald L.; Noyes, Robert W.; Burrows, Adam (American Astronomical Society, 2001)

    • Hubble Space Telescope transmission spectroscopy of the exoplanet HD 189733b: high-altitude atmospheric haze in the optical and near-ultraviolet with STIS 

      Sing, D. K.; Pont, F.; Aigrain, S.; Charbonneau, D.; Désert, J.-M.; Gibson, N.; Gilliland, R.; Hayek, W.; Henry, G.; Knutson, H.; des Etangs, A. Lecavelier; Mazeh, T.; Shporer, A. (Oxford University Press, 2011)
      We present Hubble Space Telescope (HST) optical and near-ultraviolet transmission spectra of the transiting hot Jupiter HD 189733b, taken with the repaired Space Telescope Imaging Spectrograph (STIS) instrument. The resulting ...

    • Hubble Space Telescope/NICMOS Observations of Terzan 5: Stellar Content and Structure of the Core 

      Cohn, Haldan N.; Lugger, Phyllis M.; Grindlay, Jonathan E.; Edmonds, Peter D. (American Astronomical Society, 2002)
      We report results from Hubble Space Telescope/NICMOS imaging of the extremely dense core of the globular cluster Terzan 5. This highly obscured bulge cluster contains a low-mass X-ray binary and at least two millisecond ...

    • Hubble Space Telescopeand Ground‐based Observations of Type Ia Supernovae at Redshift 0.5: Cosmological Implications 

      Clocchiatti, Alejandro; Schmidt, Brian P.; Filippenko, Alexei V.; Challis, Peter; Coil, Alison L.; Covarrubias, R.; Diercks, Alan; Garnavich, Peter; Germany, Lisa; Gilliland, Ron; Hogan, Craig; Jha, Saurabh; Kirshner, Robert P.; Leibundgut, Bruno; Leonard, Doug; Li, Weidong; Matheson, Thomas; Phillips, Mark M.; Prieto, Jose Luis; Reiss, David; Riess, Adam G.; Schommer, Robert; Smith, R. Chris; Soderberg, Alicia; Spyromilio, Jason; Stubbs, Christopher; Suntzeff, Nicholas B.; Tonry, John L.; Woudt, Patrick (American Astronomical Society, 2006)

    • Hubble Space TelescopeObservations of NGC 6240: A Case Study of an Ultraluminous Infrared Galaxy with Obscured Activity 

      Gerssen, Joris; van der Marel, Roeland P.; Axon, David; Mihos, J. Christopher; Hernquist, Lars; Barnes, Joshua E. (American Astronomical Society, 2004)
      We present results from a Hubble Space Telescope (HST) study of the morphology and kinematics of NGC 6240. This merging galaxy with a double nucleus is one of the nearest and best-studied ultraluminous infrared galaxies. ...

    • Hubble Space TelescopeObservations of Nine High-Redshift ESSENCE Supernovae 

      Krisciunas, Kevin; Garnavich, Peter M.; Challis, Peter; Prieto, Jose Luis; Riess, Adam G.; Barris, Brian; Aguilera, Claudio; Becker, Andrew C.; Blondin, Stephane; Chornock, Ryan; Clocchiatti, Alejandro; Covarrubias, Ricardo; Filippenko, Alexei V.; Foley, Ryan J.; Hicken, Malcolm; Jha, Saurabh; Kirshner, Robert P.; Leibundgut, Bruno; Li, Weidong; Matheson, Thomas; Miceli, Anthony; Miknaitis, Gajus; Rest, Armin; Salvo, Maria Elena; Schmidt, Brian P.; Smith, R. Chris; Sollerman, Jesper; Spyromilio, Jason; Stubbs, Christopher W.; Suntzeff, Nicholas B.; Tonry, John L.; Wood-Vasey, W. Michael (American Astronomical Society, 2005)
      We present broadband light curves of nine supernovae ranging in redshift from 0.5 to 0.8. The supernovae were discovered as part of the ESSENCE project, and the light curves are a combination of Cerro Tololo 4 m and Hubble ...

    • Hubble Space TelescopeObservations of Oxygen‐rich Supernova Remnants in the Magellanic Clouds. III. WFPC2 Imaging of the Young, Crab‐like Supernova Remnant SNR 0540−69.3 

      Morse, Jon A.; Smith, Nathan; Blair, William P.; Kirshner, Robert P.; Winkler, P. Frank; Hughes, John P. (American Astronomical Society, 2006)

    • Huddling: Brown Fat, Genomic Imprinting and the Warm Inner Glow 

      Haig, David Addison (Elsevier, 2008)
      Heat generated by huddling animals is a public good with a private cost and thus vulnerable to exploitation, as illustrated by recent work on rabbits and penguins. Effects of imprinted genes on brown adipose tissue suggest ...

    • Huge (but Finite) Time Scales in Slow Relaxations: Beyond Simple Aging 

      Amir, Ariel; Borini, Stefano; Oreg, Yuval; Imry, Yoseph (American Physical Society, 2011)
      Experiments performed in the last years demonstrated slow relaxations and aging in the conductance of a large variety of materials. Here, we present experimental and theoretical results for conductance relaxation and aging ...

    • HULA Code Book 

      Allen, Danielle S.; Dean, Chris; Schein, Maggie; Kang, Sheena; Webb, Melanie; Doyle, Annie Walton (2016)

    • Human Adaptation to the Control of Fire 

      Wrangham, Richard W.; Carmody, Rachel Naomi (Wiley-Blackwell, 2010)
      Charles Darwin attributed human evolutionary success to three traits. Our social habits and anatomy were important, he said, but the critical feature was our intelligence, because it led to so much else, including such ...

    • Human Adult Olfactory Bulb Neurogenesis? Novelty Is the Best Policy 

      Macklis, Jeffrey Daniel (Elsevier, 2012)
      There is ongoing controversy as to whether the understanding of adult mammalian neurogenesis gained from rodent studies is applicable to humans. In this issue of Neuron, Bergmann et al. (2012) propose that adult human ...

    • Human Capital 

      Goldin, Claudia D. (Springer Verlag, 2016)
      Human capital is the stock of skills that the labor force possesses. The flow of these skills is forthcoming when the return to investment exceeds the cost (both direct and indirect). Returns to these skills are private ...

    • Human Capital and Social Capital: The Rise of Secondary Schooling in America, 1910–1940 

      Goldin, Claudia D.; Katz, Lawrence F. (MIT Press - Journals, 1999)

    • Human Computation Tasks with Global Constraints 

      Zhang, Haoqi; Law, Edith Lok Man; Miller, Robert C.; Gajos, Krzysztof Z; Parkes, David C.; Horvitz, Eric (Association for Computing Machinery, 2012)
      An important class of tasks that are underexplored in current human computation systems are complex tasks with global constraints. One example of such a task is itinerary planning, where solutions consist of a sequence ...

    • The human ecology of global change 

      Clark, William (1989)

    • Human Genetics in Rheumatoid Arthritis Guides a High-Throughput Drug Screen of the CD40 Signaling Pathway 

      Li, Gang; Diogo, Dorothee; Wu, Di; Spoonamore, Jim; Dancik, Vlado; Franke, Lude; Kurreeman, Fina; Rossin, Elizabeth Jeffries; Duclos, Grant; Hartland, Cathy; Zhou, Xuezhong; Li, Kejie; Liu, Jun; De Jager, Philip Lawrence; Siminovitch, Katherine A.; Zhernakova, Alexandra; Raychaudhuri, Soumya; Bowes, John; Eyre, Steve; Padyukov, Leonid; Gregersen, Peter K.; Worthington, Jane; Gupta, Namrata; Clemons, Paul A.; Stahl, Eli; Tolliday, Nicola; Plenge, Robert M. (Public Library of Science, 2013)
      Although genetic and non-genetic studies in mouse and human implicate the CD40 pathway in rheumatoid arthritis (RA), there are no approved drugs that inhibit CD40 signaling for clinical care in RA or any other disease. ...