Zobrazeno 1 - 10
of 24
pro vyhledávání: '"R. L. Plambeck"'
Autor:
M. C. H. Wright, R. L. Plambeck
Orion Source I (`SrcI') is the protostar at the center of the Kleinmann-Low Nebula. ALMA observations of SrcI with 0.2" angular resolution were made at 350 and 660 GHz to search for the H26alpha and H21alpha hydrogen recombination lines and to measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e1edb5b2008664aedbf7c7218f32044
http://arxiv.org/abs/1608.00996
http://arxiv.org/abs/1608.00996
Simple 1 MM Receivers with a Fixed Tuned Double Sideband SIS Mixer and a Wideband INP MMIC Amplifier
Publikováno v:
International Journal of Infrared and Millimeter Waves. 25:1733-1755
We report on techniques to broaden the intermediate frequency (IF) bandwidth of the Berkeley‐Illinois‐Maryland Array (BIMA) 1mm Superconductor‐Insulator‐Superconductor (SIS) heterodyne receivers by combining fixed tuned Double Side Band (DSB)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f72bf50b0c38c5462f78ab587b3fec7c
https://doi.org/10.1007/s10762-004-0194-y
https://doi.org/10.1007/s10762-004-0194-y
Autor:
F. T. Rantakyrö, null L.B. Båå th, D. C. Backer, R. S. Booth, J. E. Carlstrom, D. T. Emerson, M. Grewing, H. Hirabayashi, M. W. Hodges, M. Inoue, H. Kobayashi, T. P. Krichbaum, A. J. Kus, J. M. Moran, M. Morimoto, S. Padin, R. L. Plambeck, R. Predmore, A. E.E. Rogers, C. Schalinski, A. Witzel, D. Woody, M. C.H. Wright, A. Zensus
Publikováno v:
Astronomy and Astrophysics Supplement Series. 131:451-467
We present 15 images from the global mm- VLBI sessions in 1990 April at 100 GHz and 1993 April at 86 GHz. These observations probe the central engines of the 16 observed AGN's with up to 50 as resolution. Among other sources previously observed with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa6f39daa36bd3459cfcf181eeadb44e
https://doi.org/10.1051/aas:1998282
https://doi.org/10.1051/aas:1998282
Autor:
R. L. Plambeck, G. Engargiola
Publikováno v:
Review of Scientific Instruments. 74:1380-1382
This note describes tests made of a planar L-band orthomode transducer consisting of four probes symmetrically arranged in a circular waveguide and two wideband baluns, made from back-to-back slotline-to-microstrip transitions. We designed this devic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d34489999f9814cbb27ca9ce2ae88694
https://doi.org/10.1063/1.1535741
https://doi.org/10.1063/1.1535741
Autor:
R. L. Plambeck, M. C. H. Wright
Publikováno v:
Molecular Clouds in the Milky Way and External Galaxies ISBN: 9783540504382
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::583ded5d82cc3ecafaa6b2435be45324
https://doi.org/10.1007/3-540-50438-9_262
https://doi.org/10.1007/3-540-50438-9_262
Autor:
R. L. Plambeck
Publikováno v:
Advances in Cryogenic Engineering ISBN: 9781475790498
Eight radio telescopes in the Berkeley-Illinois-Maryland Array (BIMA) are outfitted with 4 K Gifford-McMahon refrigerators. The refrigerators cool superconducting detectors (SIS mixers) on the radio receivers; the heat load at 4 K is 10 to 20 mW. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfbcb4643542fdc8b75b4b6768a0844f
https://doi.org/10.1007/978-1-4757-9047-4_229
https://doi.org/10.1007/978-1-4757-9047-4_229
Autor:
R. L. Plambeck
Publikováno v:
Cryocoolers 8 ISBN: 9781475798906
Gifford-McMahon refrigerators operating at ~ 4 K are currently used to cool SIS mixers on radio telescopes at the Berkeley-Illinois-Maryland array. The refrigerators are constructed by adding third stages onto standard 2-stage GM cryocoolers; Er3Ni s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd44e059bececde6b5bf192d74efece4
https://doi.org/10.1007/978-1-4757-9888-3_78
https://doi.org/10.1007/978-1-4757-9888-3_78
Autor:
R. L. Plambeck, K. M. Menten
Publikováno v:
The Astrophysical Journal. 364:555
Les observations radiointerferometriques BIMA des transitions 8 0 → 7 1 A + a 95 GHz de methanol et J = 2 → 1 a 98 GHz de CS, en direction des regions de formation stellaires DR 21 et DR 21(OH), sont presentees. Plusieurs masers de methanol forts
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34ce2dfa07f3979fd062a3d98ed3bd27
https://doi.org/10.1086/169437
https://doi.org/10.1086/169437
Publikováno v:
Interstellar Molecules ISBN: 9789400990999
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::376696d88b22d7b88224023013c188ad
https://doi.org/10.1007/978-94-009-9097-5_43
https://doi.org/10.1007/978-94-009-9097-5_43
Autor:
R. L. Plambeck
Publikováno v:
Galactic and Extragalactic Star Formation ISBN: 9789401078351
The 3-element millimeter interferometer at the Hat Creek Radio Observatory has been used to map the molecular line emission from a wide range of star-forming regions, from dark clouds such as B5 and L43B (Fuller, Welch, and Myers 1987) to the 105 MΘ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53834c3a029ef25f93f6a2f0438f4021
https://doi.org/10.1007/978-94-009-2973-9_13
https://doi.org/10.1007/978-94-009-2973-9_13