<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0185-1101</journal-id>
<journal-title><![CDATA[Revista mexicana de astronomía y astrofísica]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. astron. astrofis]]></abbrev-journal-title>
<issn>0185-1101</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Astronomía]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-11012014000100001</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[New radio continuum observations of the compact source projected inside NGC 6334A]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[Luis F.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Masqué]]></surname>
<given-names><![CDATA[Josep M.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Dzib]]></surname>
<given-names><![CDATA[Sergio A.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Loinard]]></surname>
<given-names><![CDATA[Laurent]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Kurtz]]></surname>
<given-names><![CDATA[Stanley E.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Nacional Autónoma de México Centro de Radioastronomía y Astrofísica ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="A02">
<institution><![CDATA[,King Abdulaziz University Faculty of Science Astronomy Department]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Saudi Arabia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2014</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2014</year>
</pub-date>
<volume>50</volume>
<numero>1</numero>
<fpage>03</fpage>
<lpage>06</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-11012014000100001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-11012014000100001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-11012014000100001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se sabe que unas pocas regiones HII muestran una fuente compacta de radio cerca de su centro. La naturaleza de estas fuentes compactas no está bien establecida. Presentamos el análisis de datos tanto nuevos como de archivo del Very Large Array de la fuente compacta proyectada cerca del centro de la región HII NGC 6334A, parte del complejo de NGC 6334. Mostramos que la fuente es variable en el tiempo en escalas de años y para una época determinamos un espectro no-térmico, sugiriendo emisión sincrotrónica. Proponemos que esta fuente es la región de interacción de los vientos de un sistema binario masivo que podría ser la fuente ionizadora de NGC 6334A.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[A handful of HII regions are known to exhibit a compact radio source near their centers. The nature of these compact radio sources is not well established. We present the analysis of new as well as archival Very Large Array observations of the compact source projected near the center of the NGC 6334A HII region, part of the NGC 6334 complex. We show that the compact source is time variable on a scale of years and determine for one epoch a non-thermal spectrum, suggestive of synchrotron emission. We propose that this source could be the wind interaction region of a massive binary system that could be the ionizing source of NGC 6334A.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[HII regions]]></kwd>
<kwd lng="en"><![CDATA[ISM]]></kwd>
<kwd lng="en"><![CDATA[radio continuum]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  	    <p align="center"><font face="verdana" size="4"><b>New radio continuum observations of the compact source projected inside NGC 6334A</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="center"><font face="verdana" size="2"><b>Luis F. Rodr&iacute;guez,<sup>1,2</sup> Josep M. Masqu&eacute;<sup>1</sup>, Sergio A. Dzib,<sup>1</sup> Laurent Loinard,<sup>1</sup> and Stanley E. Kurtz<sup>1</sup></b></font></p>  	    <p align="center"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><i><sup>1</sup> Centro de Radioastronom&iacute;a y Astrof&iacute;sica, Universidad Nacional Aut&oacute;noma de M&eacute;xico, Apdo. Postal 3&#45;72, (Xangari), 58089 Morelia, Michoac&aacute;n, Mexico</i>. (<a href="mailto:s.dzib@crya.unam.mx">s.dzib@crya.unam.mx</a>, <a href="mailto:s.kurtz@crya.unam.mx">s.kurtz@crya.unam.mx</a>, <a href="mailto:l.loinard@crya.unam.mx">l.loinard@crya.unam.mx</a>, <a href="mailto:j.masque@crya.unam.mx">j.masque@crya.unam.mx</a>, <a href="mailto:l.rodriguez@crya.unam.mx">l.rodriguez@crya.unam.mx</a>).</font></p>  	    <p align="justify"><font face="verdana" size="2"><i><sup>2</sup> Astronomy Department, Faculty of Science, King Abdulaziz University, Saudi Arabia.</i></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2">Received 2013 July 22.    <br> 	Accepted 2013 September 9.</font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>RESUMEN</b></font></p>  	    <p align="justify"><font face="verdana" size="2">Se sabe que unas pocas regiones HII muestran una fuente compacta de radio cerca de su centro. La naturaleza de estas fuentes compactas no est&aacute; bien establecida. Presentamos el an&aacute;lisis de datos tanto nuevos como de archivo del <i>Very Large Array</i> de la fuente compacta proyectada cerca del centro de la regi&oacute;n HII NGC 6334A, parte del complejo de NGC 6334. Mostramos que la fuente es variable en el tiempo en escalas de a&ntilde;os y para una &eacute;poca determinamos un espectro no&#45;t&eacute;rmico, sugiriendo emisi&oacute;n sincrotr&oacute;nica. Proponemos que esta fuente es la regi&oacute;n de interacci&oacute;n de los vientos de un sistema binario masivo que podr&iacute;a ser la fuente ionizadora de NGC 6334A.</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>ABSTRACT</b></font></p>  	    <p align="justify"><font face="verdana" size="2">A handful of HII regions are known to exhibit a compact radio source near their centers. The nature of these compact radio sources is not well established. We present the analysis of new as well as archival Very Large Array observations of the compact source projected near the center of the NGC 6334A HII region, part of the NGC 6334 complex. We show that the compact source is time variable on a scale of years and determine for one epoch a non&#45;thermal spectrum, suggestive of synchrotron emission. We propose that this source could be the wind interaction region of a massive binary system that could be the ionizing source of NGC 6334A.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Key Words:</b> HII regions &#151;ISM: individual objects (NGC 6334A) &#151;radio continuum: stars.</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmaa/v50n1/v50n1a1.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    ]]></body>
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