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RADIO ASTRONOMY OBERVTORY Quarterly Report CHARLOTTESVILLE, VA

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RADIO ASTRONOMY OBERVTORY Quarterly Report CHARLOTTESVILLE, VA 1 ; NATIONAL RADIO ASTRONOMY OBSERVATORY Charlottesville, Virginia t PROPERTY OF TH E U.S. G - iM RADIO ASTRONOMY OBERVTORY Quarterly Report CHARLOTTESVILLE, VA. 4 OCT 2 2em , July 1, 1984 - September 30, 1984 .. _._r_.__. _.. RESEARCH PROGRAMS 140-ft Telescope Hours Scheduled observing 1853.75 Scheduled maintenance and equipment changes 205.00 Scheduled tests and calibration 145.25 Time lost due to: equipment failure 122.00 power 3.25 weather 0.25 interference 14.50 The following continuum program was conducted during this quarter. No. Observer Program W193 N. White (European Space Observations at 6 cm of the eclipsing Agency) RS CVn system AR Lac. J. Culhane (Cambridge) J. Kuijpers (Utrecht) K. Mason (Cambridge) A. Smith (European Space Agency) The following line programs were conducted during this quarter. No. Observer Program B406 M. Bell (Herzberg) Observations at 13.9 GHz in search of H. Matthews (Herzberg) C6 H in TMC1. T. Sears (Brookhaven) B422 M. Bell (Herzberg) Observations at 3 cm to search for H. Matthews (Herzberg) C5 H in TMC1 and examination of T. Sears (Brookhaven) spectral features in IRC+10216 thought to be due to HC 9 N or C5 H. B423 M. Bell (Herzberg) Observations at 9895 MHz in an attempt H. Matthews (Herzberg) to detect C3 N in absorption against Cas A. 2 No. Observer Program B424 W. Batria Observations at 9.1 GHz of a newly discovered comet. C216 F. Clark (Kentucky) Observations at 6 cm and 18 cm of OH S. Miller (Kentucky) and H20 to study stellar winds and cloud dynamics. D137 L. DeNoyer (Colgate) Observations of the galactic plane at J. Dodd (Colgate) 00 < 1 < 900 at 90 cm to determine rotation measures. G272 P. Godfrey (Monash) Search at 3.3 cm for the J = 1-0 R. D. Brown (Monash) transitions of C3 0 and H2 C3 0, and W. Irvine (Massachusetts) measurements at this wavelength of L. Tack (Monash) the 312-313 transition of NH 2 CHO. M222 H. Matthews (Herzberg) Observations at 4.7 cm of CH 3 CHO in M. Bell (Herzberg) the direction of Cas A. P. Feldman (Herzberg) M223 H. Matthews (Herzberg) Observations at 5 cm of anomalous, M. Bell (Herzberg) excited OH emission toward Cas A. P128 H. Payne Observations at 18 cm of OH in Y. Terzian (Cornell) planetary nebulae. R207 R. Rood (Virginia) Observations at 8700 MHz of the hyper- T. Bania (Boston) fine transition of 3 He+ in several T. Wilson (MPIR, Bonn) galactic HII regions and planetary nebulae. T158 T. Thuan (Virginia) Observations at 21 cm to measure the E. J. Wadiak (Virginia) neutral hydrogen content of active galaxies. T182 B. Turner Search at 4 cm for the iwl/ 2 , J = 3/2 L. Rickard (Howard) rotational state of CH. Z47 L. Ziurys (Calif., Berkeley) Search at 3 GHz for interstellar G. Fuller (Calif., Berkeley) silicon hydride (SiH). R. Saykally (Calif., Berkeley) The following Very Long Baseline programs were conducted, and the stations used in the observations are coded as follows: A Arecibo 1000 ft I Iowa 60 ft B Effelsberg MPIR 100 m Jb Jodrell Bank Mk II F Fort Davis 85 ft Km Haystack 120 ft G Green Bank 140 ft Lb Bologna 25 m H Hat Creek 85 ft Lm Medicina 32 m N - NRL Maryland Point 85 ft Sk - Kirunda, Sweden 60 ft 0 - Owens Valley 130 ft No. Observer Program B382V F. Briggs (Pittsburgh) Monitoring of the 932-MHz, redshifted L. Baath (Manchester, UK) HI-absorption line in AO 0235+164, M. Davis (Arecibo) with telescopes A, G, 0, and Sk. K. Johnston (NRL) D. Jones (Caltech) B. Ronnang (Chalmers) S. Unwin (Caltech) A. Wolfe (Pittsburgh) J. Romney B385V F. Briggs (Pittsburgh) Monitoring of low-frequency variables L. Baath (Manchester, UK) at 932 MHz, with telescopes A, G, O, M. Davis (Arecibo) and Sk. K. Johnston (NRL) D. Jones (Caltech) B. Ronnang (Chalmers) S. Unwin (Caltech) A. Wolfe (Pittsburgh) J. Romney B393V J. Broderick (VPI & SU) Observations of the HI absorption K. Johnston (NRL) lines toward 3C 196 and 1229-021, with K. Mitchell (VPI & SU) telescopes G and N. W. Waltman (NRL) R. Brown H11V D. Hough (Caltech) Observations at 2.8 cm of 3C 207 and A. Readhead (Caltech) 3C 212, with telescopes B, F, G, Km, and 0. HI2V D. Hough (Caltech) Observations at 2.8 cm of cores of D2 T. Pearson (Caltech) sources that are candidates for super- A. Readhead (Caltech) luminal motion, with telescopes B, F, R. Perley G, H, Kin, and 0. H201V M. Hodges (Caltech) Observations at 607 and 932 MHz of compact doubles, with telescopes G, Jb, and 0. M56V R. Mutel (Iowa) Observations at 2.8 cm of outbursts M. Hodges (Caltech) of BL Lac, with telescopes B, F, G, H, Kin, and 0. P60V I. Pauliny-Toth (MPIR, Bonn) Observations at 2.8 cm of 3C 454.3, R. Porcas (MPIR, Bonn) with telescopes B, F, G, H, Km, and W. Sheng-Yin (MPIR, Bonn) 0. A. Zensus (MPIR, Bonn) K. Kellermann No. Observer Program R29V R. Rusk (Toronto) Observations at 2.8 and 18 cm of E. Seaquist (Toronto) highly polarized, compact radio J. Yen (Toronto) sources, with telescopes B, F, G, H, Kin, N, and 0. R30V J. Romney Observations at 2.8 cm of the W. Alef (MPIR, Bonn) structural evolution in 3C 84, with N. Broten (Herzberg) telescopes B, F, G, H, Km, Lm, and 0. I. Pauliny-Toth (MPIR, Bonn) E. Preuss (MPIR, Bonn) K. Kellermann S38V D. Shaffer (Interferometrics) Observations at 2.8 cm of 4C 39.25 (a contracting source), with telescopes B, F, G, H, Kin, Lb, and 0. S275V S. Spangler (Iowa) A search at 610 MHz for cosmic ray- J. Cordes (Cornell) induced turbulence near the supernova R. Mutel (Iowa) remnant CTA 1, with telescopes G, I, J. Benson and 0. 300-ft Telescope H ours Scheduled observing 204 9.75 Scheduled maintenance and equipment changes 15 4.25 Scheduled tests and calibration 0.00 Time lost due to: equipment failure 14.00 power 1.25 weather 0.00 interference 0.00 The following continuum programs were conducted during this quarter. No. Observer Program A59 H. Aller (Michigan) Observations at 1400 and 2695 MHz of M. Aller (Michigan) low-frequency variable sources selected R. Fanti (Bologna) from the Bologna-Michigan program. A. Ficarra (Bologna) F. Mantovani (Bologna) L. Padrielli (Bologna) B412 B. Burke (MIT) Observations at 6 cm to continue the J. Hewitt (MIT) MIT-Green Bank survey at 6 = 200 . G. Langston (MIT) < 6 < 45 J. Mahoney (MIT) No. Observer Program B415 J. Broderick (VPI & SU) Monitor of low-frequency variable D. Altschuler (Puerto Rico) sources at 611, 800, and 1400 MHz. B. Dennison (VPI & SU) K. Mitchell (VPI & SU) S. O'Dell (VPI & SU) J. Condon H. Payne G274 P. Gregory (British Columbia) A survey at 6 cm for highly variable A. Reid (British Columbia) and transient radio sources along the T. Stevenson (British galactic plane. Columbia) 032 C. O'Dea Polarization and flux density measure- B. Balonek (Williams College) ments of variable sources at 2695 MHz. W. Dent (Massachusetts) W. Kinzel (Massachusetts) The following line programs were conducted during this quarter. No. Observer Program A7 3 K. Anantharamaiah (Raman, Observations of carbon and hydrogen India) W. Erickson (Maryland) recombination lines in the range V. Radhakrishnan (Raman, 50-80 MHz toward Cas A. India) L188 F. J. Lockman Observations at 21 cm of high-latitude C. Albert (Naval Academy) galactic HI. J. Dickey (Minnesota) L. Hobbs (Chicago) K. Jahoda (Wisconsin) D. McCammon (Wisconsin) The following pulsar program was conducted during this quarter. No. Observer Program C214 J. Condon Observations at 300-500 MHz and B. Dennison (VPI & SU) 700-1000 MHz to monitor "slow" inter- D. Stinebring stellar scintillations (ISS) of pulsars. 6 12-m Telescope Hours Scheduled observing 362.25 Scheduled maintenance and equipment changes 1507.75 Scheduled tests and calibration 338.00 Time lost due to: equipment 35.00 weather 82.00 power 0.00 interference 0.00 The following line programs were conducted during this quarter. No. Observer Program D133 W. Dent (Massachusetts) Evolution of extragalactic radio R. Hobbs (unaffiliated) sources at millimeter wavelengths. T. Balonek (Williams College) G273 J. Gallagher (KPNO) CO observations of irregular galaxies. D. Hunter (KPNO) J106 J. Jackson (Massachusetts) Study of HNCO molecular clouds. A. Barrett (Massachusetts) L189 R. Loren (Texas) Study of the chemistry in a shocked H. A. Wootten region of Rho Oph. R209 R. Rickard (Howard) Study of CO emission in selected L. Blitz (Maryland) galaxies. R210 L. Rickard (Howard) Continued mapping of CO in galaxies P. Palmer (Chicago) IC 342, NGC 253, and M83. S241 S. Spangler (Iowa) Multi-frequency observations of low- S. Allendorf (Iowa) frequency variable radio sources. W. Cotton T176 H. Thronson (Wyoming) Mapping of thermal and mass structure of four regions of active star formation. Very Large Array The quarter was scheduled 100.0 percent of the time. Astronomical 1,664.0 hours (75.3 percent) Scheduled maintenance 262.2 hours (11.9 percent) Scheduled test/calibration 281.8 hours (12.8 percent) The following research programs were conducted during this quarter. No. Observer Program AA30 H. Aller (Michigan) High-resolution mapping and S. Reynolds polarimetry of 3C 58. 6 cm. AA32 P. Alexander (MRAO, UK) A search for evidence for possible re- P. Scott (MRAO, UK) acceleration in radio lobes. 2 cm. G. Pooley (MRAO, UK) AA35 J. T. Armstrong Search for recombination lines in J. Jackson (MIT) the Sgr A molecular cloud. 2-cm line. A. Barrett (MIT) P. Ho (CFA) AA37 P.
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