Reportes, informes y documentos de trabajo

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    El público del teatro independiente
    (1983) Hurtado, María de la Luz
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    Bases para una política de comunicaciones
    (1985) Hurtado, María de la Luz
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    La industria cinematográfica en Chile
    (1985) Hurtado, María de la Luz
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    La reforma de la televisión en Chile 1967-1973
    (1988) Hurtado, María de la Luz
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    Three contributions to the \"A Half Century of Stellar Pulsation Interpretations\" proceedings
    (1997) Catelan, Marcio; Sweigart, A. V.; Borissova, J.; Spassova, N.; Ivanov, V. D.
    Paper I: "RR Lyrae Variables in Globular Clusters and the Second-Parameter Phenomenon" Authors: M. Catelan, A. V. Sweigart, J. Borissova Abstract: We propose to use RR Lyrae variables in globular clusters to probe the origin of the second-parameter phenomenon. Paper II: "New Possible Variables in the Outer-Halo Globular Cluster Palomar 3" Authors: J. Borissova, N. Spassova, M. Catelan, V. D. Ivanov Abstract: We present a list of ten possible variable stars in the globular cluster Pal 3. Seven are new suspected variables. The variability of the RR Lyr candidate reported by Burbidge & Sandage (1958), as well as of the Pop. II Cepheid and RR Lyr from Gratton & Ortolani (1984), are confirmed. Paper III: "On the Production of Bright RR Lyrae Variables in Metal-Rich Globular Clusters" Authors: A. V. Sweigart, M. Catelan Abstract: See astro-ph/9708174....
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    Variable Stars in Metal-Rich Globular Clusters: NGC 6304 and NGC 6569
    (2002) Pritzl, Barton J.; Smith, Horace A.; Catelan, Marcio; Sweigart, Allen V.
    It has recently become evident that the RR Lyrae in metal-rich globular clusters ([Fe/H]> -1.0) have properties different from those of metal-rich RR Lyrae found in the field. In particular, they have longer periods than field RR Lyrae of similar metallicities, implying that the cluster RR Lyrae are more luminous than their field counterparts. Because RR Lyrae stars are major Population II standard candles, this finding has consequences for the ages of globular clusters and the galactic and extragalactic distance scales. We propose observations with the YALO telescope to obtain B,V CCD photometry of the RR Lyrae in the metal-rich globular clusters NGC 6304 and NGC 6569. These data will be used to obtain accurate periods and light curves for the RR Lyrae and will be compared to those in other systems to determine their relative luminosities. Direct comparisons will also be made to the other metal-rich globular clusters known to contain RR Lyrae.
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    DNA Applications
    (2005) Crossref Metadata Search
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    Encuesta Nacional Bicentenario UC - Adimark
    (Vicerrectoría de Comunicaciones y Asuntos Públicos, 2006) Pontificia Universidad Católica de Chile; Adimark
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    Encuesta Nacional Bicentenario UC - Adimark 07
    (2007) Pontificia Universidad Católica de Chile; Adimark
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    Encuesta Nacional Bicentenario UC - Adimark 08
    (Vicerrectoría de Comunicaciones y Asuntos Públicos, 2008) Pontificia Universidad Católica de Chile; Adimark
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    Two optically variable radio sources from CRTS
    (2008) Mahabal, A.; Drake, A. J.; Djorgovski, S. G.; Pooley, G.; Catelan, Marcio; Graham, M. J.; Williams, R.; Beshore, E. C.; Larson, S. M.; Christensen, E.
    We have discovered two optically variable radio sources in the data from the Catalina Real-time Transient Survey (CRTS). The discovery J2000 coordinates are as follows. The colors are from 3 follow-up epochs at the Palomar 60-inch telescope.
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    Encuesta Nacional Bicentenario UC - Adimark 09
    (Vicerrectoría de Comunicaciones y Asuntos Públicos, 2009) Pontificia Universidad Católica de Chile; Adimark
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    The pre-Nova Lightcurve of KT Eri (Nova Eridani 2009)
    (2009) Drake, A. J.; Djorgovski, S. G.; Graham, M. J.; Mahabal, A. A.; Williams, R.; Wils, P.; Greaves, J.; Catelan, Marcio; Prieto, J.; Beshore, E. C.; Larson, S. M.; Boattini, A.; Gibbs, A.; Grauer, A.; Hill, R.; Kowalski, R.; Christensen, E.
    Here we report on historical observations of the pre-Nova source of KT Eri (Nova Eridani 2009). Following the detection of the possible Nova at mag 8.1 by Yamaoka et al. (2009, CBET#2050), we carried out a search of Catalina Sky Survey 0.7m data covering the location of this event. Photometry of the source was found with dates between 2005-01-17 and 2009-11-18 UT. The Nova was clearly seen in outburst in images taken on Nov.
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    The First Optical Transient Discoveries from MLS (The Astronomer's Telegram, No.2318)
    (2009) Drake, A. J.; Djorgovski, S. G.; Mahabal, A. A.; Graham, M. J.; Williams, R.; Catelan, Marcio; Beshore, E. C.; Larson, S. M.; Boattini, A.; Gibbs, A.; Grauer, A.; Hill, R.; Kowalski, R.; Christensen, E.
    We report on the discovery of optical transients by the Catalina Real-time Transient Survey (CRTS) in data from the Catalina Sky Survey's 1.5m Mount Lemmon Survey (MLS) telescope. The transients were discovered between 2009-11-11 and 2009-11-24 UT and have the following parameters....
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    The pre-Nova light curve of CSS081007:030559+054715
    (2009) Drake, A. J.; Beshore, E. C.; Djorgovski, S. G.; Mahabal, A. A.; Graham, M. J.; Williams, R.; Catelan, Marcio; Larson, S. M.; Hill, R.; Gibbs, A.; Boattini, A.; Christensen, E.
    The Nova CSS081007:030559+054715 was discovered by the Catalina Real-time Transient Survey (CRTS) on Oct 07 2008 UT and followed photometrically with the Palomar-60 between Oct 9 and Dec 12 2008. It was first classified as a possible recurrent nova by Pejcha et al. (2008; ATEL#1825) and later as Oxygen/Neon nova by Prieto et al. (2008; ATel#1835). Beardmore et al. (2008; ATEL#1873) subsequently discovered significant X-ray emission and a 1.77 day period by monitoring it with SWIFT and Nelson et al. (2009; ATEL#1910) observed it with Chandra and found the object to exhibit a supersoft continuum superimposed with prominent emission lines. Goranskij and Metlova (2009; ATEL#1938) observed it optically in B,V and Rc between Dec. 3 2008 and Feb. 19 2009 and discovered two possible periods (1.694 and 0.6106 days). We have analyzed 117 pre-outburst CSS observations of the object taken on 34 nights between Oct 1 2005 and Mar 10 2008 UT. We find the the object exhibited variability well in excess of one magnitude during this time. However, we find no evidence for the post-outburst 1.77 day X-ray period signal observed by Beardmore et al. (2008; ATEL#1873) or the 0.6106 and 1.694 day optical periods observed by Goranskij and Metlova (2009; ATEL#1938). We find the best period for pre-outburst oscillations is 11.386 +/- 0.010 days. However, the data do not strongly constrain the periodic nature of the pre-outburst oscillations. On going CSS observations suggest that the Nova must not have begun the rapid decline noted by Goranskij and Metlova (2009; ATEL#1938) until after Jan 29th UT (rather the Jan. 22nd). Spectroscopic follow-up obtained with the SMARTs 1.5m telescope on Nov. 5th and is consistent with that of Prieto et al. (2008; ATel#1835).
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    Supernova 2010ks in UGC 5622
    (2010) Howerton, S.; Drake, A. J.; Djorgovski, S. G.; Mahabal, A.; Graham, M. J.; Williams, R.; Prieto, J. L.; Catelan , Marcio; Beshore, E. C.; Larson, S. M.; Christensen, E.
    Report the CRTS discovery of an apparent supernova in public images from Catalina Sky Survey (CSS). SN 2010 UT R.A. (2000.0) Decl. Mag. Offset 2010ks Dec. 11.46 10 23 42.44 +33 46 49.0 17.0 7".8 E, 22".0 N Further unfiltered CCD magnitude estimates of 2010ks: June 15.20 UT, [19.3 (CSS); Dec. 12.42, 17.4 (LB-1 0.6-m telescope at Rodeo, NM). The presumed host galaxy, UGC 5622, has redshift z = 0.033....
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    Supernova 2010ll
    (2010) Drake, A. J.; Djorgovski, S. G.; Mahabal, A.; Graham, M. J.; Williams, R.; Prieto, J. L.; Catelan , Marcio; Beshore, E. C.; Larson, S. M.; Christensen, E.
    Report the CRTS discovery of an apparent supernova in unfiltered Catalina Sky Survey (CSS) images: SN 2010 UT R.A. (2000.0) Decl. Mag. Offset 2010ll Dec. 10.32 4 50 29.81 -10 44 17.0 18.1 11".8 W, 6".3 N Further CSS magnitudes for 2010ll: Nov. 16.39 UT, [20.4; Nov. 30.35, 19.0....
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    A Supernova Candidate from the Siding Spring Survey
    (2010) Drake, A. J.; Djorgovski, S. G.; Mahabal, A. A.; Graham, M. J.; Williams, R.; Prieto, J.; Catelan , Marcio; Christensen, E.; McNaught, R.; Garradd, G.; Beshore, E. C.; Larson, S. M.
    We report the discovery of the first supernova candidate from the Siding Spring Survey (SSS) by the Catalina Real-time Transient Survey (CRTS). The detection has the following details: <table border=1 width=650 align=center> <tr><th>ID</th><th>Disc. Date</th><th>RA</th><th>Dec</th><th>Disc. Mag</th></tr> <tr align=center><td><a href='http://crts.caltech.edu/ATEL/SSS/1005080151534122262.atel.html'> SSS100508:210144-143830</a></td><td> 2010-05-08 </td><td> 21:01:44.10 </td><td> -14:38:30.5 </td><td> 16.4</tr> </table> The host galaxy, 2MFGC 15924 (=PGC 187888), has redshift z=0.0275 (Jones et al....
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    Encuesta Nacional Bicentenario UC - Adimark 10
    (Vicerrectoría de Comunicaciones y Asuntos Públicos, 2010) Pontificia Universidad Católica de Chile; Adimark