Results 21 to 30 of about 38,209 (292)

Outflows and disks of brown dwarfs with SMA, CARMA and ALMA

EPJ Web of Conferences, 2013
Brown dwarfs are on the dividing line between planets and stars. Up to date, about 1,000 brown dwarfs, including the coolest known brown dwarfs with temperatures of ∼300 K as cool as the human body, have been discovered.
Tho Do D., Martín Eduardo, Ho Paul, Phan-Bao Ngoc, Lee Chin-Fei   +4 more
doaj   +1 more source

Introduction to Millimeter/Sub-millimeter Astronomy [PDF]

, 2018
This is an introduction to the basic elements needed for the measurements and interpretation of data in the millimeter and sub-mm wavelength range. A more complete version will be published in the proceedings of the Saas Fee Winter School 2008.
openaire   +2 more sources

A NEXT GENERATION MULTI-BEAM FOCAL PLANE ARRAY RECEIVER OF TRAO FOR 86-115 GHZ BAND [PDF]

Journal of Astronomy and Space Sciences, 2006
The noise temperature of existing millimeter-wave receivers is already within two or three times quantum noise limit. One of practical ways to increase the observation speed of single dish radio telescope without longer integration time is use of multi ...
Moon-Hee Chung, Vladimir B. Khaikin, Hyo-Ryoung Kim, Changhoon Lee, Kwang-Dong Kim, Kiwon Park   +5 more
doaj   +1 more source

SPIDER: a balloon-borne CMB polarimeter for large angular scales [PDF]

, 2010
We describe SPIDER, a balloon-borne instrument to map the polarization of the millimeter-wave sky with degree angular resolution. Spider consists of six monochromatic refracting telescopes, each illuminating a focal plane of large-format antenna-coupled ...
Ade, P. A. R., Amiri, M., Benton, S. J., Bihary, R., Bock, J. J., Bond, J. R., Bonetti, J. A., Bryan, S. A., Burger, B., Chiang, H. C., Contaldi, C. R., Crill, B. P., Doré, O., Farhang, M., Filippini, J. P., Fissel, L. M., Gandilo, N. N., Golwala, S. R., Gudmundsson, J. E., Halpern, M., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Irwin, K. D., Jones, W. C., Kuo, C. L., MacTavish, C. J., Mason, P. V., Montroy, T. E., Morford, T. A., Netterfield, C. B., O'Dea, D. T., Rahlin, A. S., Reintsema, C. D., Ruhl, J. E., Runyan, M. C., Schenker, M. A., Shariff, J. A., Soler, J. D., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D.   +43 more
core   +2 more sources

THE MILLIMETER ASTRONOMY LEGACY TEAM 90 GHz (MALT90) PILOT SURVEY [PDF]

The Astrophysical Journal Supplement Series, 2011
Accepted to ApJS. 23 pages and 16 figures. Full resolution version with an appendix showing all the data (12.1 MB) is available at http://malt90.bu.edu/publications/Foster_2011_Malt90Pilot ...
Foster, Jonathan B, Jackson, James M, Barnes, Peter J, Barris, Elizabeth, Brooks, Kate, Cunningham, Maria, Finn, Susanna C, Fuller, Gary A, Longmore, Steve N, Mascoop, Joshua L, Peretto, Nicolas, Rathborne, Jill, Sanhueza, Patricio, Schuller, Frédéric, Wyrowski, Friedrich   +14 more
openaire   +2 more sources

Herschel Far-Infrared and Sub-millimeter Photometry for the KINGFISH Sample of Nearby Galaxies [PDF]

, 2011
New far-infrared and sub-millimeter photometry from the Herschel Space Observatory is presented for 61 nearby galaxies from the Key Insights on Nearby Galaxies: A Far-Infrared Survey with Herschel (KINGFISH) sample.
A. D. Bolatto, A. E. Miller, A. F. Crocker, A. K. Leroy, Aguirre, B. A. Groves, B. D. Johnson, B. R. Brandl, B. T. Draine, Benford, Bolatto, C. D. Wilson, C. W. Engelbracht, C.-N. Hao, D. A. Dale, D. Calzetti, Dale, Dale, Dale, Dale, Draine, Draine, E. J. Montiel, E. J. Murphy, E. Schinnerer, Engelbracht, F. S. Tabatabaei, F. Walter, Finkbeiner, G. Aniano, G. Helou, H. Roussel, H.-W. Rix, J. Koda, J. L. Hinz, J.-D. T. Smith, K. D. Gordon, K. M. Sandstrom, K. V. Croxall, Kennicutt, Kovács, L. Armus, L. K. Hunt, Li, M. G. Wolfire, M. Galametz, M. Sauvage, Moustakas, N. Rahman, O. Krause, Ott, P. Beirão, P. N. Appleton, Pascale, Pilyugin, R. A. Skibba, R. C. Kennicutt, Roussel, S. E. Meidt, S. Zibetti, Schlegel, Skibba, Smith, Walter, Walter, Weingartner, Y. Li   +66 more
core   +4 more sources

Development of Wideband Tunable E-Band (60-70 GHz) Gunn Oscillator [PDF]

Journal of Astronomy and Space Sciences, 2000
A Gunn waveguide-oscillator, mechanically tunable from 60 to 70 GHz, has been developed for use as a local oscillator (LO) in millimeter radio telescope.
Hyunjoo Kim, Seogtae Han, Taiseong Kim, Yonggi Kim   +3 more
doaj  

Performance of Hybrid NbTiN-Al Microwave Kinetic Inductance Detectors as Direct Detectors for Sub-millimeter Astronomy

, 2014
In the next decades millimeter and sub-mm astronomy requires large format imaging arrays and broad-band spectrometers to complement the high spatial and spectral resolution of the Atacama Large Millimeter/sub-millimeter Array.
Baryshev, A. M., Baselmans, J. J. A., Endo, A., Ferrari, L., Janssen, R. M. J., Klapwijk, T. M., Yates, S. J. C.   +6 more
core   +1 more source

Perspective from a Younger Generation -- The Astro-Spectroscopy of Gisbert Winnewisser

, 1997
Gisbert Winnewisser's astronomical career was practically coextensive with the whole development of molecular radio astronomy. Here I would like to pick out a few of his many contributions, which I, personally, find particularly interesting and put them ...
A McKellar, A Nummelin, A Nummelin, A Remijan, A Schulz, A Wootten, AC Cheung, AC Cheung, AE Douglas, AH Saleck, AH Saleck, B Hoglund, B Zuckerman, BE Turner, BE Turner, BE Turner, C Ceccarelli, CA Gottlieb, CM Walmsley, D Buhl, DA Neufeld, DA Neufeld, DM Mehringer, DM Mehringer, E Churchwell, E Churchwell, E Churchwell, EF Dishoeck van, ET Polehampton, F Bensch, F Combes, F Combes, F Sato, FF Gardner, FF Gardner, FF Gardner, FH Shu, G Dahmen, G Winnewisser, G Winnewisser, G Winnewisser, GA Blake, GJ Melnick, H Spinrad, HI Ewen, HM Pickett, HSP Muüller, II Berulis, IS Shklovsky, J Cernicharo, J Stutzki, J Stutzki, J Stutzki, J Stutzki, J Stutzki, JA Ball, JL Highberger, JL Highberger, JM Hollis, JM Hollis, JM Hollis, JM MacLeod, JN Chengalur, JR Goicoechea, JR Pardo, K Kawaguchi, LE Snyder, LE Snyder, LE Snyder, LE Snyder, LE Snyder, LE Snyder, LM Ziurys, LM Ziurys, LW Avery, LW Avery, M Guélin, M Klumb, M Morris, M Morris, MB Bell, MR Hunt, MWFNRJCRBJBRD Sinclair, N Fourikis, N Kaifu, NW Broten, NZ Scoville, OEH Rydbeck, OEH Rydbeck, P Ehrenfreund, P Palmer, P Schilke, P Swings, PDBRDRBJ Godfrey, PF Goldsmith, PFL Goldsmith, R Bachiller, R Schieder, R Stark, RD Brown, RH Rubin, RL Plambeck, RW Wilson, S Liu, S Petrie, S Saito, S Weinreb, S Yamamoto, SE Cummins, T Dunham, TG Phillips, TR Geballe, UU Graf, UU Graf, WG Roberge, Y Kuan, Y Kuan, Y Miao, YS Miao   +118 more
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Electromagnetic reprogrammable coding-metasurface holograms

Nature Communications, 2017
Realizing metasurfaces with reconfigurability, high efficiency, and control over phase and amplitude is a challenge. Here, Li et al. introduce a reprogrammable hologram based on a 1-bit coding metasurface, where the state of each unit cell of the coding ...
Lianlin Li, Tie Jun Cui, Wei Ji, Shuo Liu, Jun Ding, Xiang Wan, Yun Bo Li, Menghua Jiang, Cheng-Wei Qiu, Shuang Zhang   +9 more
doaj   +1 more source