Search Results - "Smits, D. P"

The Extraordinary Outburst in the Massive Protostellar System NGC 6334I-MM1: Emergence of Strong 6.7 GHz Methanol Masers by Hunter, T. R., Brogan, C. L., MacLeod, G. C., Cyganowski, C. J., Chibueze, J. O., Friesen, R., Hirota, T., Smits, D. P., Chandler, C. J., Indebetouw, R.

“…We report the first sub-arcsecond VLA imaging of 6 GHz continuum, methanol maser, and excited-state hydroxyl maser emission toward the massive protostellar…”
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Two periods instead of one in a single 6.7 GHz methanol maser feature in G9.62+0.20E by MacLeod, G C, Yonekura, Y, Tanabe, Y, Baan, W A, Brogan, C L, Burns, R A, Chibueze, J O, Houde, M, Hunter, T R, Kurtz, S E, Rajabi, F, Smits, D P, Stecklum, B, Sugiyama, K

“…ABSTRACT The source G9.62+0.20E surprises yet again! Analysis of the associated methanol maser feature at vlsr = +8.8 km s−1 revealed a second period of P =…”
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The Expanding Bipolar Shell of the Helium Nova V445 Puppis by Woudt, P. A, Steeghs, D, Karovska, M, Warner, B, Groot, P. J, Nelemans, G, Roelofs, G. H. A, Marsh, T. R, Nagayama, T, Smits, D. P, O’Brien, T

“…From multi-epoch adaptive optics imaging and integral field unit spectroscopy, we report the discovery of an expanding and narrowly confined bipolar shell…”
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A masing event in NGC 6334I: contemporaneous flaring of hydroxyl, methanol, and water masers by MacLeod, G C, Smits, D P, Goedhart, S, Hunter, T R, Brogan, C L, Chibueze, J O, van den Heever, S P, Thesner, C J, Banda, P J, Paulsen, J D

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Identifying Zeeman pairs of hydroxyl masers in NGC 6334I-MM3 via velocity drift by MacLeod, G C, Smits, D P, Hunter, T R, Brogan, C, Chibueze, J O, van den Heever, S P

“…ABSTRACT A new tool to identify possible Zeeman pairs is presented here: the right circularly polarized (RCP) and left circularly polarized (LCP) components of…”
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Monitoring of 6-cm excited OH masers — II by Smits, Derck P.

“…A search towards 69 star-forming regions has led to the discovery of three new 4765-MHz excited OH masers. No 4750- or 4660-MHz excited OH masers were detected…”
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Morphological Species Delimitation in The Western Pond Turtle (Actinemys): Can Machine Learning Methods Aid in Cryptic Species Identification? by Burroughs, R W, Parham, J F, Stuart, B L, Smits, P D, Angielczyk, K D

“…Synopsis As the discovery of cryptic species has increased in frequency, there has been an interest in whether geometric morphometric data can detect…”
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Jupiter’s radio spectrum from 74 MHz up to 8 GHz by de Pater, Imke, Butler, B.J., Green, D.A., Strom, R., Millan, R., Klein, M.J., Bird, M.K., Funke, O., Neidhöfer, J., Maddalena, R., Sault, R.J., Kesteven, M., Smits, D.P., Hunstead, R.

“…We carried out a brief campaign in September 1998 to determine Jupiter’s radio spectrum at frequencies spanning a range from 74 MHz up to 8 GHz. Eleven…”
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Radio Emission from GRO J1655–40 during the 1994 Jet Ejection Episodes by Hannikainen, D. C, Hunstead, R. W, Campbell-Wilson, D, Wu, K, McKay, D. J, Smits, D. P, Sault, R. J

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Low-temperature recombination coefficients and nova-shell abundances by SMITS, D. P

“…Capture–collision–cascade models developed for calculating recombination spectra of H I, He I and CNO ions from a neutral to a doubly ionized state are…”
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Hydrogen-like Ion Emission in the Spectra of Low-Mass X-Ray Binaries by Bautista, M. A, Kallman, T. R, Angelini, L, Liedahl, D. A, Smits, D. P

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Theoretical He I line intensities in low-density plasmas by SMITS, D. P

“…A capture-collision-cascade model has been developed for calculating recombination spectra of He I in nebular conditions. The method of solution closely…”
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Size of the Vela Pulsar's Radio Emission Region: 500 Kilometers by Gwinn, C. R, Ojeda, M. J, Britton, M. C, Reynolds, J. E, Jauncey, D. L, King, E. A, McCulloch, P. M, Lovell, J. E. J, Flanagan, C. S, Smits, D. P, Preston, R. A, Jones, D. L

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Theoretical He i line intensities in low-density plasmas by Smits, Derck P.

“…Theoretical line fluxes for He i in nebular conditions are presented for a comprehensive range of optical and infrared lines. For n < 10 new analytical atomic…”
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A Masing Event in NGC6334I: Contemporaneous Flaring of Hydroxyl, Methanol and Water Masers by MacLeod, G. C, Smits, D. P, Goedhart, S, Hunter, T. R, Brogan, C. L, Chibueze, J. O, Heever, S. P. van den, Thesner, C. J, Banda, P. J, Paulsen, J. D

“…As a product of the maser monitoring program with the 26m telescope of the Hartebeesthoek Radio Astronomy Observatory (HartRAO), we present an unprecedented,…”
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The Extraordinary Outburst in the Massive Protostellar System NGC6334I-MM1: Emergence of Strong 6.7 GHz Methanol Masers by Hunter, T. R, Brogan, C. L, MacLeod, G. C, Cyganowski, C. J, Chibueze, J. O, Friesen, R, Hirota, T, Smits, D. P, Chandler, C. J, Indebetouw, R

“…We report the first sub-arcsecond VLA imaging of 6 GHz continuum, methanol maser, and excited-state hydroxyl maser emission toward the massive protostellar…”
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New detections of excited OH masers at 5-cm wavelength by Smits, D. P.

“…10 new sources with emission from the $^2\Pi_{3/2}\enspace J = 5/2$ excited level of OH have been detected. They were found during a survey at 6035 MHz of 257…”
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OH 4765‐MHz maser flares in Mon R2 by Smits, Derck P., Cohen, Hutawarakorn

“…Spectacular flares are reported in the excited OH 4765‐MHz maser emission from Mon R2. The maser has increased in flux by over two orders of magnitude, with a…”
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Observations of the 21 June 2001 Total Solar Eclipse by Smits, D P

“…Total solar eclipses are rare events, but the publicity surrounding them is generating a lot of interest. These events can be used to popularize astronomy and…”
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Photoionization modelling of metal-enriched nova shells by SMITS, D. P

“…A photoionization model has been developed to investigate the physical conditions in old nova shells with large metal abundances. Atomic rates at low…”
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