<?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>S0185-11012017000200019</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[A Study of Dust Color Temperature and Dust Mass Distributions of Four Far Infrared Loops]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jha]]></surname>
<given-names><![CDATA[A. K.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aryal]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Weinberger]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Tribhuvan University Central Department of Physics ]]></institution>
<addr-line><![CDATA[Kirtipur ]]></addr-line>
<country>Nepal</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Innsbruck University Institute of Astroparticle Physics ]]></institution>
<addr-line><![CDATA[Innsbruck ]]></addr-line>
<country>Austria</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<volume>53</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-11012017000200019&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-11012017000200019&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-11012017000200019&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT We present dust color temperature, dust mass and inclination angle of four far infrared loops namely G007+18, G143+07, G214-01 and G323-02 which are found to be located within 1o from pulsars PSR J1720-1633, PSR J0406+6138, PSR J0652-0142 and PSR J1535-5848, respectively. These low latitude loops (l&lt;20o) are believed to be formed because high pressure events occurred in the past (e.g., supernova explosion). The dust color temperature of the core region is found to lie in the range 19.4±1.2&#8722;25.3±1.7K, whereas the range increased to 33±2&#8722;47±3K for the outer region. The dust color and dust mass distribution maps show that the low temperature region has greater density as expected. The core region of one loop is found to be edge-on (i &gt; 70o) whereas the larger structure is nearly face-on (i &lt; 70o).]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Presentamos temperaturas de color, masas e inclinaciones para el polvo de cuatro anillos infrarrojos. Los anillos son G007+18, G143+07, G214-01 y G323-02 y se encuentran a menos de un grado de los pulsares PSR J1720-1633, PSR J0406+6138, PSR J0652-0142 y PSR J1535-5848, respectivamente. Se piensa que estos anillos, situados a bajas latitudes (l&lt;20o) se formaron como resultado de pasados eventos de alta presio´n (por ejemplo, explosiones de supernovas). La temperatura de color del polvo en la región central está comprendida en el intervalo 19.4±1.2&#8722;25.3±1.7K, mientras que la de la región externa tiene valores mayores, entre 33±2&#8722;47±3K. Los mapas de la distribución de temperatura de color y masa del polvo muestran que la región de bajas temperaturas tiene una densidad mayor, como se espera. En un caso, la inclinación de la regi´on central, (i &gt; 70o) nos muestra al anillo casi de canto, mientras que la región externa (i &lt; 70o) está casi de frente.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[dust]]></kwd>
<kwd lng="en"><![CDATA[extinction]]></kwd>
<kwd lng="en"><![CDATA[evolution]]></kwd>
<kwd lng="en"><![CDATA[ISM: bubbles]]></kwd>
<kwd lng="en"><![CDATA[ISM: structure]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aryal]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Weinberger]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[A&amp;A]]></source>
<year>2006</year>
<volume>448</volume>
<page-range>213</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aryal]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Rajbahak]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Weinberger]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Ap&amp;SS]]></source>
<year>2009</year>
<volume>323</volume>
<page-range>323</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aryal]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[MNRAS]]></source>
<year>2010</year>
<volume>402</volume>
<page-range>1307</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Brand]]></surname>
<given-names><![CDATA[P. W. J. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Zealey]]></surname>
<given-names><![CDATA[W. J.]]></given-names>
</name>
</person-group>
<source><![CDATA[A&amp;A]]></source>
<year>1975</year>
<volume>38</volume>
<page-range>363</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Crawford]]></surname>
<given-names><![CDATA[D. L.]]></given-names>
</name>
</person-group>
<source><![CDATA[PASP]]></source>
<year>1994</year>
<volume>106</volume>
<page-range>397</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dupac]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Bernard]]></surname>
<given-names><![CDATA[J.-P.]]></given-names>
</name>
<name>
<surname><![CDATA[Boudet]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<source><![CDATA[A&amp;A]]></source>
<year>2003</year>
<volume>404</volume>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hildebrand]]></surname>
<given-names><![CDATA[R. H.]]></given-names>
</name>
</person-group>
<source><![CDATA[QJRAS]]></source>
<year>1983</year>
<volume>24</volume>
<page-range>267</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Holmberg]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[MeLuS]]></source>
<year>1946</year>
<volume>117</volume>
<numero>3</numero>
<issue>3</issue>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kiss]]></surname>
<given-names><![CDATA[Cs.]]></given-names>
</name>
<name>
<surname><![CDATA[Móor]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Tóth]]></surname>
<given-names><![CDATA[L. V.]]></given-names>
</name>
</person-group>
<source><![CDATA[A&amp;A]]></source>
<year>2004</year>
<volume>418</volume>
<page-range>131</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Köenyves]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Kiss]]></surname>
<given-names><![CDATA[Cs.]]></given-names>
</name>
<name>
<surname><![CDATA[Móor]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Kiss]]></surname>
<given-names><![CDATA[Z. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Tóth]]></surname>
<given-names><![CDATA[L. V.]]></given-names>
</name>
</person-group>
<source><![CDATA[A&amp;A]]></source>
<year>2007</year>
<volume>463</volume>
<page-range>1227</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Koo]]></surname>
<given-names><![CDATA[B. -C.]]></given-names>
</name>
<name>
<surname><![CDATA[Reach]]></surname>
<given-names><![CDATA[W. T.]]></given-names>
</name>
</person-group>
<source><![CDATA[ApJ]]></source>
<year>1992</year>
<volume>390</volume>
<page-range>108</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Launhardt]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Henning]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<source><![CDATA[A&amp;A]]></source>
<year>1997</year>
<volume>326</volume>
<page-range>329</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Manchester]]></surname>
<given-names><![CDATA[R. N.]]></given-names>
</name>
<name>
<surname><![CDATA[Hobbs]]></surname>
<given-names><![CDATA[G. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Teoh]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Hobbs]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[AJ]]></source>
<year>2005</year>
<volume>129</volume>
<page-range>1993</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Odenwald]]></surname>
<given-names><![CDATA[S. F.]]></given-names>
</name>
</person-group>
<source><![CDATA[ApJ]]></source>
<year>1988</year>
<volume>325</volume>
<page-range>320</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Odenwald]]></surname>
<given-names><![CDATA[S. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Rickard]]></surname>
<given-names><![CDATA[L. J.]]></given-names>
</name>
</person-group>
<source><![CDATA[ApJ]]></source>
<year>1987</year>
<volume>318</volume>
<page-range>702</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schnee]]></surname>
<given-names><![CDATA[S. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Ridge]]></surname>
<given-names><![CDATA[N. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Goodman]]></surname>
<given-names><![CDATA[A. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Jason]]></surname>
<given-names><![CDATA[G. L.]]></given-names>
</name>
</person-group>
<source><![CDATA[ApJ]]></source>
<year>2005</year>
<volume>634</volume>
<page-range>442</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schwartz]]></surname>
<given-names><![CDATA[P. R.]]></given-names>
</name>
</person-group>
<source><![CDATA[ApJ]]></source>
<year>1987</year>
<volume>320</volume>
<page-range>258</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[J. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Manchester]]></surname>
<given-names><![CDATA[R. N.]]></given-names>
</name>
<name>
<surname><![CDATA[Lyne]]></surname>
<given-names><![CDATA[A. G.]]></given-names>
</name>
</person-group>
<source><![CDATA[ApJS]]></source>
<year>1993</year>
<volume>88</volume>
<page-range>529</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Weaver]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[McCray]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Castor]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Shapiro]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Moore]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[ApJ]]></source>
<year>1977</year>
<volume>218</volume>
<page-range>377</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Weinberger]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Armsdorfer]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[A&amp;A]]></source>
<year>2004</year>
<volume>416</volume>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Young]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Phillips]]></surname>
<given-names><![CDATA[T. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Knapp]]></surname>
<given-names><![CDATA[G. R.]]></given-names>
</name>
</person-group>
<source><![CDATA[ApJ]]></source>
<year>1993</year>
<volume>409</volume>
<page-range>725</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
