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200 papers

We present the Multi-Array Galactic Plane Imaging Survey (MAGPIS), which maps portions of the first Galactic quadrant with an angular resolution, sensitivity and dynamic range that surpasses existing radio images of the Milky Way by more…

Astrophysics · Physics 2010-02-23 David J. Helfand , Robert H. Becker , Richard L. White , Adam Fallon , Sarah Tuttle

A moderately deep survey of stellar maser sources toward the Galactic center has been made in the SiO J=1-0 v=1 and v=2 transitions (~ 43 GHz) with the Nobeyama 45-m telescope of a beam size of about 40". At the Galactic center (Sgr A*), 7…

Astrophysics · Physics 2009-10-30 Hideyuki Izumiura , Shuji Deguchi , Takahiro Fujii

We present a comprehensive multi-frequency catalogue of radio sources behind the Large Magellanic Cloud between 0.2 and 20 GHz, gathered from a combination of new and legacy radio continuum surveys. This catalogue covers an area of…

The Hubble Source Catalog is designed to help optimize science from the Hubble Space Telescope by combining the tens of thousands of visit-based source lists in the Hubble Legacy Archive into a single master catalog. Version 1 of the Hubble…

We present a catalogue of extended radio sources from the SARAO MeerKAT Galactic Plane Survey (SMGPS). Compiled from 56 survey tiles and covering approximately 500 deg$^2$ across the first, third, and fourth Galactic quadrants, the…

(abridged) We have observed almost 1/3 of the globular clusters in the Milky Way, targeting distant and/or highly reddened objects, besides a few reference clusters. A large sample of red giant stars was observed with FORS2@VLT/ESO at R ~…

We present a catalogue of point-source Halpha emission line objects selected from the INT/WFC Photometric H$\alpha$ Survey of the Northern Galactic Plane (IPHAS). The catalogue covers the magnitude range 13 < r' < 19.5 and includes northern…

Astrophysics · Physics 2009-11-13 A. R. Witham , C. Knigge , J. E. Drew , R. Greimel , D. Steeghs , B. T. Gaensicke , P. J. Groot , A. Mampaso

We present a catalogue of compact sources detected in the SARAO MeerKAT 1.3 GHz Galactic Plane Survey (SMGPS). We extract 510599 compact sources, with areas less than five 8" beams, from the survey maps covering the regions $252\deg< l <…

As part of the GLOSTAR survey we have used the VLA in its B-configuration to observe the part of the Galactic plane between longitudes of 28d and 36d and latitudes from -1d to +1d at the C-band (4--8 GHz). To reduce the contamination of…

We present our fifth set of results from our mid-infrared imaging survey of Milky Way Giant HII (GHII) regions with our detailed analysis of DR7 and K3-50. We obtained 20/25 and 37um imaging maps of both regions using the FORCAST instrument…

Astrophysics of Galaxies · Physics 2023-06-07 James M. De Buizer , Wanggi Lim , James T. Radomski , Mengyao Liu

The Herschel Space Observatory was the fourth cornerstone mission in the European Space Agency (ESA) science programme. It had excellent broad band imaging capabilities in the far-infrared (FIR) and sub-millimetre part of the…

We present our sixth set of results from our mid-infrared imaging survey of Milky Way Giant HII regions with our detailed analysis of NGC 3603, the most luminous GHII region in the Galaxy. We used imaging data from the FORCAST instrument on…

Astrophysics of Galaxies · Physics 2024-01-05 James M. De Buizer , Wanggi Lim , Nicole Karnath , James T. Radomski

The inner $\sim$200 pc region of the Galaxy contains a 4 million M$_{\odot}$ supermassive black hole (SMBH), significant quantities of molecular gas, and star formation and cosmic ray energy densities that are roughly two orders of…

Astrophysics of Galaxies · Physics 2022-02-09 I. Heywood , I. Rammala , F. Camilo , W. D. Cotton , F. Yusef-Zadeh , T. D. Abbott , R. M. Adam , G. Adams , M. A. Aldera , K. M. B. Asad , E. F. Bauermeister , T. G. H. Bennett , H. L. Bester , W. A. Bode , D. H. Botha , A. G. Botha , L. R. S. Brederode , S. Buchner , J. P. Burger , T. Cheetham , D. I. L. de Villiers , M. A. Dikgale-Mahlakoana , L. J. du Toit , S. W. P. Esterhuyse , B. L. Fanaroff , S. February , D. J. Fourie , B. S. Frank , R. R. G. Gamatham , M. Geyer , S. Goedhart , M. Gouws , S. C. Gumede , M. J. Hlakola , A. Hokwana , S. W. Hoosen , J. M. G. Horrell , B. Hugo , A. I. Isaacson , G. I. G. Józsa , J. L. Jonas , A. F. Joubert , R. P. M. Julie , F. B. Kapp , J. S. Kenyon , P. P. A. Kotzé , N. Kriek , H. Kriel , V. K. Krishnan , R. Lehmensiek , D. Liebenberg , R. T. Lord , B. M. Lunsky , K. Madisa , L. G. Magnus , O. Mahgoub , A. Makhaba , S. Makhathini , J. A. Malan , J. R. Manley , S. J. Marais , A. Martens , T. Mauch , B. C. Merry , R. P. Millenaar , N. Mnyandu , O. J. Mokone , T. E. Monama , M. C. Mphego , W. S. New , B. Ngcebetsha , K. J. Ngoasheng , M. T. Ockards , N. Oozeer , A. J. Otto , S. S. Passmoor , A. A. Patel , A. Peens-Hough , S. J. Perkins , A. J. T. Ramaila , N. M. R. Ramanujam , Z. R. Ramudzuli , S. M. Ratcliffe , A. Robyntjies , S. Salie , N. Sambu , C. T. G. Schollar , L. C. Schwardt , R. L. Schwartz , M. Serylak , R. Siebrits , S. K. Sirothia , M. Slabber , O. M. Smirnov , L. Sofeya , B. Taljaard , C. Tasse , A. J. Tiplady , O. Toruvanda , S. N. Twum , T. J. van Balla , A. van der Byl , C. van der Merwe , V. Van Tonder , R. Van Wyk , A. J. Venter , M. Venter , B. H. Wallace , M. G. Welz , L. P. Williams , B. Xaia

We have obtained Spitzer/IRAC observations of the central 2.0 x 1.4 degrees (~280 x 200 pc) of the Galaxy at 3.6-8.0 microns. A point source catalog of 1,065,565 objects is presented. The catalog includes magnitudes for the point sources at…

A detailed analysis of Herschel-PACS observations at the North Ecliptic Pole is presented. High quality maps, covering an area of 0.44 square degrees, are produced and then used to derive potential candidate source lists. A rigorous quality…

The goal of the present paper is to investigate the circumstellar material around the brightest dust-enshrouded sources in the central stellar cluster of the Milky Way. Observations have been carried out at the European Southern…

Astrophysics of Galaxies · Physics 2009-10-02 J. Moultaka , A. Eckart , R. Schödel

The Millennium Galaxy Catalogue (MGC) is a 37.5 deg^2, medium-deep, B-band imaging survey along the celestial equator, taken with the Wide Field Camera on the Isaac Newton Telescope. The survey region is contained within the regions of both…

Astrophysics · Physics 2008-11-26 J. Liske , D. J. Lemon , S. P. Driver , N. J. G. Cross , W. J. Couch

We utilize new VLA Galactic plane catalogs at 5 and 1.4 GHz covering the first Galactic quadrant (350<l<42, |b|<0.4) in conjunction with the MSX6C Galactic plane catalog to construct a large sample of ultra-compact HII regions. A radio…

Astrophysics · Physics 2009-11-10 Uriel Giveon , Robert H. Becker , David J. Helfand , Richard L. White

We present the WiFeS Atlas of Galactic Globular cluster Spectra, a library of integrated spectra of Milky Way and Local Group globular clusters. We used the WiFeS integral field spectrograph on the Australian National University 2.3 m…

The inner regions of the Galaxy are severely affected by extinction, which limits our capability to study the stellar populations present there. The Vista Variables in the Via Lactea (VVV) ESO Public Survey has observed this zone at…