Zobrazeno 1 - 10
of 160
pro vyhledávání: '"Hunter, Todd R."'
Autor:
Xue, Ci, Remijan, Anthony, Faure, Alexandre, Momjian, Emmanuel, Hunter, Todd R., Loomis, Ryan A., Herbst, Eric, McGuire, Brett
At centimeter wavelengths, single-dish observations have suggested that the Sagittarius (Sgr) B2 molecular cloud at the Galactic Center hosts weak maser emission from several organic molecules, including CH$_2$NH, HNCNH, and HCOOCH$_3$. However, the
Externí odkaz:
http://arxiv.org/abs/2404.12622
Autor:
Fried, Zachary T. P., El-Abd, Samer J., Hays, Brian M., Wenzel, Gabi, Byrne, Alex N., Margulès, Laurent, Motiyenko, Roman A., Shipman, Steven T., Horne, Maria P., Jørgensen, Jes K., Brogan, Crystal L., Hunter, Todd R., Remijan, Anthony J., Lipnicky, Andrew, Loomis, Ryan A., McGuire, Brett A.
We use both chirped-pulse Fourier transform and frequency modulated absorption spectroscopy to study the rotational spectrum of 2-methoxyethanol in several frequency regions ranging from 8.7-500 GHz. The resulting rotational parameters permitted a se
Externí odkaz:
http://arxiv.org/abs/2403.17341
Autor:
El-Abd, Samer J., Brogan, Crystal L., Hunter, Todd R., Lee, Kin Long Kelvin, Loomis, Ryan A., McGuire, Brett A.
Much of the information gleaned from observations of star-forming regions comes from the analysis of their molecular emission spectra, particularly in the radio regime. The time-consuming nature of fitting synthetic spectra to observations interactiv
Externí odkaz:
http://arxiv.org/abs/2402.13913
Autor:
Williams, Gwenllian M., Cyganowski, Claudia J., Brogan, Crystal L., Hunter, Todd R., Nazari, Pooneh, Smith, Rowan J.
We present a study of the physical and chemical properties of the Extended Green Object (EGO) G19.01$-$0.03 using sub-arcsecond angular resolution Atacama Large Millimeter/submillimeter Array (ALMA) 1.05mm and Karl G. Jansky Very Large Array (VLA) 1.
Externí odkaz:
http://arxiv.org/abs/2309.01743
Autor:
Hunter, Todd R., Indebetouw, Remy, Brogan, Crystal L., Berry, Kristin, Chang, Chin-Shin, Francke, Harold, Geers, Vincent C., Gómez, Laura, Hibbard, John E., Humphreys, Elizabeth M., Kent, Brian R., Kepley, Amanda A., Kunneriath, Devaky, Lipnicky, Andrew, Loomis, Ryan A., Mason, Brian S., Masters, Joseph S., Maud, Luke T., Muders, Dirk, Sabater, Jose, Sugimoto, Kanako, Szűcs, László, Vasiliev, Eugene, Videla, Liza, Villard, Eric, Williams, Stewart J., Xue, Rui, Yoon, Ilsang
Publikováno v:
Publications of the Astronomical Society of the Pacific, volume 135, number 1049, 074501, 2023 July 24
We describe the calibration and imaging heuristics developed and deployed in the ALMA interferometric data processing pipeline, as of ALMA Cycle 9. The pipeline software framework is written in Python, with each data reduction stage layered on top of
Externí odkaz:
http://arxiv.org/abs/2306.07420
Autor:
Williams, Gwenllian M., Cyganowski, Claudia J., Brogan, Crystal L., Hunter, Todd R., Ilee, John D., Nazari, Pooneh, Kruijssen, J. M. Diederik, Smith, Rowan J., Bonnell, Ian A.
Using the Atacama Large Millimetre/submillimeter Array (ALMA) and the Karl G. Jansky Very Large Array (VLA), we observed the Extended Green Object (EGO) G19.01$-$0.03 with sub-arcsecond resolution from 1.05 mm to 5.01 cm wavelengths. Our $\sim0.4''\s
Externí odkaz:
http://arxiv.org/abs/2110.06262
Autor:
Chibueze, James O., Macleod, Gordon C., Vorster, Jakobus M., Hirota, Tomoya, Brogan, Crystal L., Hunter, Todd R., Van Rooyen, Ruby
Following an eruptive accretion event in NGC6334I-MM1, flares in the various maser species, including water masers, were triggered. We report the observed relative proper motion of the highly variable water masers associated with the massive star-for
Externí odkaz:
http://arxiv.org/abs/2101.11913
A diverse array of science goals require accurate flux calibration of observations with the Atacama Large Millimeter/Submillimeter array (ALMA), however, this goal remains challenging due to the stochastic time-variability of the ``grid'' quasars ALM
Externí odkaz:
http://arxiv.org/abs/2010.02186
Autor:
Ligterink, Niels F. W., El-Abd, Samer J., Brogan, Crystal L., Hunter, Todd R., Remijan, Anthony J., Garrod, Robin T., McGuire, Brett M.
Amide molecules produced in space could play a key role in the formation of biomolecules on a young planetary object. However, the formation and chemical network of amide molecules in space is not well understood. In this work, ALMA observations are
Externí odkaz:
http://arxiv.org/abs/2008.09157
Autor:
Ginsburg, Adam, Anderson, L. D., Dicker, Simon, Romero, Charles, Svoboda, Brian, Devlin, Mark, Galván-Madrid, Roberto, Indebetouw, Remy, Liu, Hauyu Baobab, Mason, Brian, Mroczkowski, Tony, Armentrout, W. P., Bally, John, Brogan, Crystal, Butterfield, Natalie, Hunter, Todd R., Reese, Erik D., Rosolowsky, Erik, Sarazin, Craig, Shirley, Yancy, Sievers, Jonathan, Stanchfield, Sara
We report the results of a pilot program for a Green Bank Telescope (GBT) MUSTANG Galactic Plane survey at 3 mm (90 GHz), MGPS90. The survey achieves a typical $1\sigma$ depth of $1-2$ mJy beam$^{-1}$ with a 9" beam. We describe the survey parameters
Externí odkaz:
http://arxiv.org/abs/2004.09555