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<p>Estimadas/os, </p>
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<p>a continuación les reenviamos un mail con la invitación,
información y datos de conexión sobre el Ciclo de Seminarios
LLAMA-IAFE. El primer encuentro se llevará a cabo este viernes 4
de junio desde las 10:00hs en formato virtual.<br>
</p>
<p>Quedan todos cordialmente invitados,</p>
<p> Secyt-FCAG</p>
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<div>Estimadas y estimados colegas,</div>
<br>
Nos ponemos en contacto con ustedes para
invitarlas/os a un Ciclo de Seminarios que estamos
organizando para que las comunidades astronómicas
de Argentina y Brasil empiecen a tomar contacto
con el proyecto LLAMA.<br>
<br>
LLAMA (Large Latin American Millimeter Array) es
un radiotelescopio de 12 metros de diámetro cuya
construcción está siendo llevada a cabo por
Argentina y Brasil y será puesto en marcha en la
provincia de Salta, a una altura de 4.830 msnm.<br>
El instrumento podrá observar en distintas bandas
(B1-B9 simil ALMA), cubriendo un rango de
frecuencias de 35–950 GHz (longitudes de onda
milimétricas y submilimétricas).<br>
<br>
El objetivo principal de estos encuentros es
difundir las novedades sobre LLAMA, discutir la
ciencia que podrá llevarse a cabo y motivar la
comunicación e interacción entre investigadores y
estudiantes de las distintas áreas de la
astronomía.<br>
<br>
<b>El Ciclo de Seminarios LLAMA tendrá lugar los
primeros viernes de cada mes, de 10 a 12 hs, en
formato virtual.</b><br>
Cada encuentro consistirá de 3 charlas invitadas
(la primera de 40 minutos de duración y las otras
dos de 20 minutos cada una) e intervalos para
discusiones.<br>
<br>
<font size="4"><b>El primer encuentro será el
viernes 4 de junio de 2021</b>, <b>con el
siguiente cronograma:</b></font><br>
<br>
<div><span style="color:rgb(255,0,0)"><b>10:00 hs:
Félix Mirabel</b></span> (IAFE, Buenos
Aires, Argentina) <b><br>
</b></div>
<div style="text-align:left"><b>The origin of
project LLAMA</b></div>
<div style="text-align:left"><b> </b>Abstract: I
have been asked to talk on the origin of project
LLAMA (Large Latin American Millimeter Array).
</div>
<div style="text-align:left">By personal
initiative in 1984 I make the first exploration
in the Puna of Salta, Jujuy and Catamarca for
the installation of the European project LSA
(Large Submillimetre Array). Sites in Macon
and near San Antonio de los Cobres among others
are identified in the province of Salta. In the
1990’s LSA merged with the Nord American
project MMA (Milli-meter Array) in the global
project ALMA (Atacama Large Millimeter Array) to
be installed in Chajnantor, Chile. In the period
2004-2009, being Representative and Director of
the Office of Science of the European Southern
Observatories (ESO) in Chile, I propose to the
director of ALMA, the head of MinCyT (Ministry
of Science & Technology of Argentina),
Jacques Lepine and Zulema Abraham (University of
Sao Paulo) project LLAMA. In 2014 it is signed
an agreement between MinCyT and FAPESP for the
construction and operation of LLAMA. <br>
</div>
A personal view on this subject can be found (in
spanish) in pages 67-69 of the following link: <br>
<br>
<a
href="https://aargentinapciencias.org/wp-content/uploads/2021/03/0"
target="_blank" moz-do-not-send="true">https://aargentinapciencias.org/wp-content/uploads/2021/03/0</a>
<a
href="https://aargentinapciencias.org/wp-content/uploads/2021/03/03-RESENA-Mirabel-CeIResenasT9N1-2021indd.pdf3-RESENA-Mirabel-CeIResenasT9N1-2021indd.pdf"
target="_blank" moz-do-not-send="true">https://aargentinapciencias.org/wp-content/uploads/2021/03/03-RESENA-Mirabel-CeIResenasT9N1-2021indd.pdf3-RESENA-Mirabel-CeIResenasT9N1-2021indd.pdf</a><br>
<br>
<br>
<span style="color:rgb(255,0,0)"><b>11:00 hs:
Zulema Abraham</b></span> (IAG, Universidade
de São Paulo, Brasil) <br>
<div><b>Eta Carinae : a perfect target for LLAMA</b></div>
<div><b> </b>Abstract: Eta Carinae is one of the
most massive stars of our Galaxy. It is an
evolved star that presented several episodes of
mass ejection, one of them<br>
</div>
occurred in 1840 and formed what is now known as
the Homunculus Nebula. Eta Carinae is part of a
binary system, in which the collision between the<br>
strong stellar winds heats the gas that emits in
X-rays. The UV radiation of the stars ionizes the
circumstellar matter, producing radiation from the<br>
UV to radio frequencies. At mm and sub-millimeter
wavelengths, strong continuum and H recombination
lines have been observed since 1995, but the
actual source was only resolved by ALMA in 2017. I
will present the results of these ALMA
observations and show the importance of LLAMA for
the follow up of the continuum and recombination
lines at different frequencies to understand its
variability with the orbital phase of the binary
system.<br>
<br>
<span style="color:rgb(255,0,0)"><b>11:30 hs:
Lydia Cidale</b></span> (FCAGLP, La Plata,
Argentina) <b><br>
</b>
<div><b>Dust and gaseous environments around
massive stars</b></div>
<div>Abstract: Evolved massive stars undergo
phases of strong mass-loss, often resulting in
the formation of shells, disks or rings of
circumstellar material. The expelled material
can lead to molecule and dust condensation.
Studies of the atomic and molecular gas reveal
a complex kinematics and geometry. We describe
here different techniques to analyze and
interpret the physical conditions around hot
emission-line stars.</div>
-------------------------------------------------------<br>
Para unirse al encuentro:<br>
<br>
Join Zoom Meeting<br>
<a
href="https://us02web.zoom.us/j/86920302374?pwd=QkhKcm9xdXRGdnIzcnAyOFlvR2RFdz09"
target="_blank" moz-do-not-send="true">https://us02web.zoom.us/j/86920302374?pwd=QkhKcm9xdXRGdnIzcnAyOFlvR2RFdz09</a><br>
<br>
Meeting ID: 869 2030 2374<br>
<div>Passcode: 624154</div>
<div>------------------------------------------------------</div>
<div><br>
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<div>Las/os esperamos</div>
<div><br>
Comité organizador del Ciclo de Seminarios LLAMA<br>
<br>
Silvina Cichowolski (IAFE)<br>
Germán Cristiani (IAFE)<br>
Nicolás Duronea (IALP)<br>
Laura Suad (IAFE)<br>
Carlos Valotto (IATE)
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