The authors report the results of the second part of a survey of the 1400 MHz radio continuum radiation from dwarf galaxies. This work completes a survey of low surface brightness dwarf galaxies (LSBG) in the Uppsala General Catalog (UGC)... more
The authors report the results of the second part of a survey of the 1400 MHz radio continuum radiation from dwarf galaxies. This work completes a survey of low surface brightness dwarf galaxies (LSBG) in the Uppsala General Catalog (UGC) (Nilson 1973), and in the Catalog of Selected non-UGC Galaxies (Nilson 1974), which are brighter than magnitude 17 and are
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A comparison is conducted between the radio emission characteristics of a sample of isolated pairs of spiral galaxies and those of a sample of isolated spiral galaxies for which complete distance information is available. It is noted that... more
A comparison is conducted between the radio emission characteristics of a sample of isolated pairs of spiral galaxies and those of a sample of isolated spiral galaxies for which complete distance information is available. It is noted that double galaxy total emission is, on average, a factor of 2 more powerful than that of isolated spiral galaxies of comparable luminosity.
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This poster presents a project at Puerto Rico to establish a working team of undergraduate students (Starry Messengers) to promote and experience the wonders of space science and education with all the senses. The students are expected to... more
This poster presents a project at Puerto Rico to establish a working team of undergraduate students (Starry Messengers) to promote and experience the wonders of space science and education with all the senses. The students are expected to assist during the activities of the International Year of Astronomy 2009 (IYA2009). During 2008 the students will receive the appropriate instruction on observational astronomy through two workshops. These workshops follow the active learning model and therefore prepare students for outreach activities in astronomy. An innovative model of inclusion will be developed, adapting all the activities and material to include blind or visually impaired. We will encourage the participation of at least one visually impaired student or teacher on the Starry Messengers team. The greatest challenge in this project will be to develop adequate accessible activities in astronomy. The workshops will be held at the Arecibo Observatory and "El Parque de las Cien...
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As part of a pilot program to map the distribution of galaxies in the galactic Anticenter region of the Zone of Avoidance, we present the results of a redshift survey for a homogeneous sample of low galactic latitude, faint, putative... more
As part of a pilot program to map the distribution of galaxies in the galactic Anticenter region of the Zone of Avoidance, we present the results of a redshift survey for a homogeneous sample of low galactic latitude, faint, putative galaxies. A sample of 86 galaxy candidates selected from the list compiled by Weinberger (1980) has been observed with the
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We present HI 21-cm line observations of 543 galaxies at low galactic latitude in the Galactic Anticenter region of the Zone of Avoidance (4(h) <=alpha <= 8(h) , 0arcdeg <=delta <= 37arcdeg ).... more
We present HI 21-cm line observations of 543 galaxies at low galactic latitude in the Galactic Anticenter region of the Zone of Avoidance (4(h) <=alpha <= 8(h) , 0arcdeg <=delta <= 37arcdeg ). The sample comprises 147 catalogued objects (from UGC, CGCG, MCG, and IRAS) still missing a redshift measurement and a list of 369 objects selected from an extensive