SPITZER: Accretion in Low Mass Stars and Brown Dwarfs in the Lambda
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The Complete Abstract Booklet
First Light Science with the GTC Program and Abstracts Organizing Committees LOC – Local Organizing Committee Chris Packham (co-Chair), University of Florida Rafael Guzman (co-Chair), University of Florida Anthony Gonzalez, University of Florida Vicki Sarajedini, University of Florida Stanley Dermott, University of Florida SOC – Scientific Organizing Committee Rafael Guzman (Chair), UF, USA Jose Alberto Lopez, IAUNAM, Mexico Charles Telesco, UF, USA Elizabeth Lada, UF, USA Francisco Garzon, IAC, Spain Francisco Sanchez, IAC, Spain Itziar Aretxaga, INAOE, Mexico Jesus Gallego, UCM, Spain Jesus Gonzalez, IA-UNAM, Mexico Jian Ge, UF, USA Jordi Cepa, IAC, Spain Jose Franco, IA-UNAM, Mexico Jose Guichard, INAOE, Mexico Jose M. R. Espinosa, GTC project office, Spain Luis Colina. IEM-CSIC, Spain Marc Balcells, IAC, Spain Mariano Moles, IAA, Spain Marisa Garcia, GTC project office, Spain Stanley Dermott, UF, USA Steve Eikenberry, UF, USA Xavier Barcons, CSIC, Spain First Light Science with the GTC Sponsors First Light Science with the GTC would like to thank these organizations for their support of this meeting. Research & Graduate Programs First Light Science with the GTC General Information Date: Main Conference: Wednesday, June 28 - Friday, June 30, 2006 Post Conference Workshops: Saturday, July 1 - Tuesday, July 4, 2006 Site of the Meeting: The Biltmore Hotel 1200 Anastasia Avenue Coral Gables, FL 33134 Tel: (305) 445-1926 FAX: (305) 913-3159 Web Site: http://www.biltmorehotel.com Oral Presentations: Merrick & Stoneman Douglas (simulcast) Poster Presentations: Tuttle, Flagler & Deering Lunch: Alhambra Notice to Speakers: The speakers are requested to bring their Power Point presentation to the session room 30 minutes be- fore their sessions. -
The Evening Sky Map a DECEMBER 2018 N
I N E D R I A C A S T N E O D I T A C L E O R N I G D S T S H A E P H M O O R C I . Z N O n i f d o P t o ) l a h O N r g i u s , o Z l t P h I C e r o N R ( I o r R r O e t p h C H p i L S t D E E a g r i . H ( B T F e O h T NORTH D R t h N e M e E s A G X O U e A H m M C T i . I n P i N d S L E E m P Z “ e E A N Dipper t e H O NORTHERN HEMISPHERE o M T R r T The Big The N Y s H h . E r o ” E K Alcor & e w ) t W S . s e . T u r T Mizar l E U p W C B e R e a N l W D k b E s T u T MAJOR W H o o The Evening Sky Map A DECEMBER 2018 n E C D O t FREE* EACH MONTH FOR YOU TO EXPLORE, LEARN & ENJOY THE NIGHT SKY URSA S e L h K h e t Y E m R d M A n o A a r Thuban S SKY MAP SHOWS HOW P Get Sky Calendar on Twitter n T 1 i n C A 3 E g R M J http://twitter.com/skymaps O Sky Calendar – December 2018 o d B THE NIGHT SKY LOOKS U M13 f n O N i D “ f L D e T DRACO A o c NE O I t I e T EARLY DEC PM T 8 m P t S i 3 Moon near Spica (morning sky) at 9h UT. -
A Search for Pre- and Proto-Brown Dwarfs in the Dark Cloud Barnard 30 with ALMA N
A&A 597, A17 (2017) Astronomy DOI: 10.1051/0004-6361/201628510 & c ESO 2016 Astrophysics A search for pre- and proto-brown dwarfs in the dark cloud Barnard 30 with ALMA N. Huélamo1, I. de Gregorio-Monsalvo2; 3, A. Palau4, D. Barrado1, A. Bayo5; 6, M. T. Ruiz7, L. Zapata4, H. Bouy1, O. Morata8, M. Morales-Calderón1, C. Eiroa9, and F. Ménard10 1 Dpto. Astrofísica, Centro de Astrobiología (INTA-CSIC); ESAC campus, Camino bajo del Castillo s/n, Urb. Villafranca del Castillo, 28692 Villanueva de la Cañada, Spain e-mail: [email protected] 2 European Southern Observatory, 3107 Alonso de Córdova, Vitacura, Santiago, Chile 3 Joint ALMA office, 3107 Alonso de Córdova, Vitacura, Casilla 19001, Santiago 19, Chile 4 Instituto de Radioastronomía y Astrofísica, Universidad Nacional Autónoma de México, PO Box 3-72, 58090 Morelia, Michoacán, México 5 Departamento de Física y Astronomía, Facultad de Ciencias, Universidad de Valparaíso, Av. Gran Bretaña 1111, 5030 Casilla, Valparaíso, Chile 6 ICM nucleus on protoplanetary disks, Universidad de Valparaíso, Av. Gran Bretaña 1111, Valparaíso, Chile 7 Dpto. de Astronomía, Universidad de Chile, 1515 Camino del Observatorio, Santiago, Chile 8 Institute of Astronomy and Astrophysics, Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU. No. 1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan 9 Unidad Asociada Astro-UAM, UAM, Unidad Asociada CSIC, Universidad Autónoma de Madrid, Ctra. Colmenar km 15, 28049 Madrid, Spain 10 Institut de Planétologie et d’Astrophysique de Grenoble, UMR 5274, BP 53, 38041 Grenoble, Cedex 9, France Received 14 March 2016 / Accepted 21 September 2016 ABSTRACT Context. -
Southern Sky.Pdf
R E A I N S D N I O C I A T T C E E D R I A D L O S S N A G P T M H O E C . H N O O R Z m a r w I i e t h h t I t Z s h t e c i R O g p o e l d O N d t e a n H h C t f l e E I n e o R c i H e t C T a l f L l r o e E D t m s N ( n G NORTH F o A r c O e e M t R H k n T O i E m I a f X N C y A t a . E h Z M s o S i l P E o s P L g e H i SOUTHERN HEMISPHERE E y r A T . A “ N M N E O Capella E Y R W T K T H E S ” B . ) . D O W T E r U i T The Evening Sky Map o W R A n N C DECEMBER 2002 , W . O T T e L l h FREE* EACH MONTH FOR YOU TO EXPLORE, LEARN & ENJOY THE NIGHT SKY H a e E γ E M31 h R H w S AURIGA Algol A u K r n Y S o t T SKY MAP SHOWS HOW r e M C e r E t A , s J P i n s B o A O Sky Calendar – December 2002 t THE NIGHT SKY LOOKS M38 h R m L e O PERSEUS a A U b I e r N s T NE ANDROMEDA i S l EARLY DEC PM D g 10 M37 E a h M36 L c 1 Moon near Venus and Mars at 11h UT (morning sky). -
The Evening Sky
I N E D R I A C A S T N E O D I T A C L E O R N I G D S T S H A E P H M O O R C I . Z N O e d b l A a r , a l n e O , g N i C R a , Z p s e u I l i C l r a i , R I S C f R a O o s C t p H o L u r E e E & d H P a ( o T F m l O l s u i D R NORTH x ” , N M n E a A o n O X g d A H a x C P M T e r . I o P Polaris H N c S L r y E E e o P Z t n “ n E . EQUATORIAL EDITION i A N H O W T M “ R e T Y N H h E T ” K E ) W S . T T E U W B R N The Evening Sky Map W D E T T . FEBRUARY 2011 WH r A e E C t M82 FREE* EACH MONTH FOR YOU TO EXPLORE, LEARN & ENJOY THE NIGHT SKY O s S L u K l T Y c E CASSIOPEIA h R e r M a A S t A SKY MAP SHOWS HOW i s η M81 Get Sky Calendar on Twitter S P c T s k C A l e e E CAMELOPARDALIS R d J Sky Calendar – February 2011 a O http://twitter.com/skymaps i THE NIGHT SKY LOOKS s B y U O a H N L s D e t A h NE a I t I EARLY FEB 9 PM r T T f S p 1 Moon near Mercury (16° from Sun, morning sky) at 17h UT. -
Mapping Young Stellar Populations Towards Orion with Gaia DR1 E
Astronomy & Astrophysics manuscript no. draft_2cols c ESO 2018 November 9, 2018 Mapping young stellar populations towards Orion with Gaia DR1 E. Zari1?, A. G. A. Brown1, J. de Bruijne2, C. F. Manara2; 3 & P. T. de Zeeuw1; 3 1 Leiden Observatory, Niels Bohrweg 2, 2333 CA Leiden, the Netherlands; 2 Scientific Support Office, Directorate of Science, European Space Research and Technology Center (ESA/ESTEC), Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands; 3 ESO, Karl-Schwarzschild-Str. 2, 85748 Garching bei München, Germany November 9, 2018 ABSTRACT In this work we use the first data release of the Gaia mission to explore the three dimensional arrangement and the age ordering of the many stellar groups towards the Orion OB association, aiming at a new classification and characterization of the stellar population not embedded in the Orion A and B molecular clouds. We make use of the parallaxes and proper motions provided in the Tycho Gaia Astrometric Solution (TGAS) sub-set of the Gaia catalogue, and of the combination of Gaia and 2MASS photometry. In TGAS, we find evidence for the presence of a young population, at a parallax $ ∼ 2:65 mas, loosely distributed around some known clusters: 25 Ori, Ori and σ Ori, and NGC 1980 (ι Ori) and the Orion Nebula Cluster (ONC). The low mass counterpart of this population is visible in the color-magnitude diagrams constructed by combining Gaia G photometry and 2MASS. We study the density distribution of the young sources in the sky, using a Kernel Density Estimation (KDE). We find the same groups as in TGAS, and also some other density enhancements that might be related to the recently discovered Orion X group, the Orion dust ring, and to the λ Ori complex. -
Deep Sky Explorer Atlas
Deep Sky Explorer Atlas Reference manual Star charts for the southern skies Compiled by Auke Slotegraaf and distributed under an Attribution-Noncommercial 3.0 Creative Commons license. Version 0.20, January 2009 Deep Sky Explorer Atlas Introduction Deep Sky Explorer Atlas Reference manual The Deep Sky Explorer’s Atlas consists of 30 wide-field star charts, from the south pole to declination +45°, showing all stars down to 8th magnitude and over 1 000 deep sky objects. The design philosophy of the Atlas was to depict the night sky as it is seen, without the clutter of constellation boundary lines, RA/Dec fiducial markings, or other labels. However, constellations are identified by their standard three-letter abbreviations as a minimal aid to orientation. Those wishing to use charts showing an array of invisible lines, numbers and letters will find elsewhere a wide selection of star charts; these include the Herald-Bobroff Astroatlas, the Cambridge Star Atlas, Uranometria 2000.0, and the Millenium Star Atlas. The Deep Sky Explorer Atlas is very much for the explorer. Special mention should be made of the excellent charts by Toshimi Taki and Andrew L. Johnson. Both are free to download and make ideal complements to this Atlas. Andrew Johnson’s wide-field charts include constellation figures and stellar designations and are highly recommended for learning the constellations. They can be downloaded from http://www.cloudynights.com/item.php?item_id=1052 Toshimi Taki has produced the excellent “Taki’s 8.5 Magnitude Star Atlas” which is a serious competitor for the commercial Uranometria atlas. His atlas has 149 charts and is available from http://www.asahi-net.or.jp/~zs3t-tk/atlas_85/atlas_85.htm Suggestions on how to use the Atlas Because the Atlas is distributed in digital format, its pages can be printed on a standard laser printer as needed. -
The Evening Sky Map S
I N E D R I A C A S T N E O D I T A C L E O R N I G D S T S H A E P H M O O R C I . Z N O a r e o t u a n t o d r O N t o h t e Z r N a I e o C p r t p R h I a R C s O e r C l a H e t L s s t , E E i s a e l H ( d P T F u o t O l i e NORTH D t R a ( l N N M E A n C X r O P e A ) H h . M C T t r . I P o N L S n E E P Z m “ o E r A N F H O NORTHERN HEMISPHERE M T R T Y N & Alcor & H E ” K E ) W S . T Mizar T E U W B R . t N i D W C a E e T s T W e H t A The Evening Sky Map s o JANUARY 2020 E C r o O FREE* EACH MONTH FOR YOU TO EXPLORE, LEARN & ENJOY THE NIGHT SKY t S a L K n d Y d E e r R i P M ν Thuban A u o A q l S SKY MAP SHOWS HOW l Get Sky Calendar on Twitter P Etamin e u T r x C A e E R a r Vega J O r Dipper Sky Calendar – January 2020 http://twitter.com/skymaps a e B THE NIGHT SKY LOOKS U s O t The Big The N e h i L D ε k e A s NE I I t T w k EARLY JAN PM T 8 r S S 2 Moon at apogee (farthest from Earth) at 1h UT (distance 404,580 km; i a n E NW C D L R Lyr R E s E . -
Spitzer Observations of the Lambda Orionis Cluster I: the Frequency of Young Debris Disks at 5 Myr Jesus Hernandez
University of Massachusetts Amherst ScholarWorks@UMass Amherst Astronomy Department Faculty Publication Series Astronomy 2009 Spitzer Observations of the Lambda Orionis cluster I: the frequency of young debris disks at 5 Myr Jesus Hernandez Nuria Calvet L. Hartmann J. Muzerolle R. Gutermuth University of Massachusetts - Amherst See next page for additional authors Follow this and additional works at: https://scholarworks.umass.edu/astro_faculty_pubs Part of the Astrophysics and Astronomy Commons Recommended Citation Hernandez, Jesus; Calvet, Nuria; Hartmann, L.; Muzerolle, J.; Gutermuth, R.; and Stauffer, J., "Spitzer Observations of the Lambda Orionis cluster I: the frequency of young debris disks at 5 Myr" (2009). The Astrophysical Journal. 123. 10.1088/0004-637X/707/1/705 This Article is brought to you for free and open access by the Astronomy at ScholarWorks@UMass Amherst. It has been accepted for inclusion in Astronomy Department Faculty Publication Series by an authorized administrator of ScholarWorks@UMass Amherst. For more information, please contact [email protected]. Authors Jesus Hernandez, Nuria Calvet, L. Hartmann, J. Muzerolle, R. Gutermuth, and J. Stauffer This article is available at ScholarWorks@UMass Amherst: https://scholarworks.umass.edu/astro_faculty_pubs/123 Spitzer Observations of the λ Orionis cluster I: the frequency of young debris disks at 5 Myr Jes´us Hern´andez1, Nuria Calvet 2, L. Hartmann2, J. Muzerolle3, R. Gutermuth 4,5, J. Stauffer6 [email protected] ABSTRACT We present IRAC/MIPS Spitzer observations of intermediate-mass stars in the 5 Myr old λ Orionis cluster. In a representative sample of stars earlier than F5 (29 stars), we find a population of 9 stars with a varying degree of moderate 24µm excess comparable to those produced by debris disks in older stellar groups. -
Astronomy Magazine 2012 Index Subject Index
Astronomy Magazine 2012 Index Subject Index A AAR (Adirondack Astronomy Retreat), 2:60 AAS (American Astronomical Society), 5:17 Abell 21 (Medusa Nebula; Sharpless 2-274; PK 205+14), 10:62 Abell 33 (planetary nebula), 10:23 Abell 61 (planetary nebula), 8:72 Abell 81 (IC 1454) (planetary nebula), 12:54 Abell 222 (galaxy cluster), 11:18 Abell 223 (galaxy cluster), 11:18 Abell 520 (galaxy cluster), 10:52 ACT-CL J0102-4915 (El Gordo) (galaxy cluster), 10:33 Adirondack Astronomy Retreat (AAR), 2:60 AF (Astronomy Foundation), 1:14 AKARI infrared observatory, 3:17 The Albuquerque Astronomical Society (TAAS), 6:21 Algol (Beta Persei) (variable star), 11:14 ALMA (Atacama Large Millimeter/submillimeter Array), 2:13, 5:22 Alpha Aquilae (Altair) (star), 8:58–59 Alpha Centauri (star system), possibility of manned travel to, 7:22–27 Alpha Cygni (Deneb) (star), 8:58–59 Alpha Lyrae (Vega) (star), 8:58–59 Alpha Virginis (Spica) (star), 12:71 Altair (Alpha Aquilae) (star), 8:58–59 amateur astronomy clubs, 1:14 websites to create observing charts, 3:61–63 American Astronomical Society (AAS), 5:17 Andromeda Galaxy (M31) aging Sun-like stars in, 5:22 black hole in, 6:17 close pass by Triangulum Galaxy, 10:15 collision with Milky Way, 5:47 dwarf galaxies orbiting, 3:20 Antennae (NGC 4038 and NGC 4039) (colliding galaxies), 10:46 antihydrogen, 7:18 antimatter, energy produced when matter collides with, 3:51 Apollo missions, images taken of landing sites, 1:19 Aristarchus Crater (feature on Moon), 10:60–61 Armstrong, Neil, 12:18 arsenic, found in old star, 9:15 -
Spectroscopy of Very Low Mass Stars and Brown Dwarfs in the Lambda Orionis Star Forming Region I
A&A 536, A63 (2011) Astronomy DOI: 10.1051/0004-6361/201116617 & c ESO 2011 Astrophysics Spectroscopy of very low mass stars and brown dwarfs in the Lambda Orionis star forming region I. Enlarging the census down to the planetary mass domain in Collinder 69, A. Bayo1,3,D.Barrado2,3,J.Stauffer4, M. Morales-Calderón3,4,C.Melo1,N.Huélamo3, H. Bouy3, B. Stelzer5,M.Tamura6, and R. Jayawardhana7 1 European Southern Observatory, Av. Alonso de Córdova 3107, Santiago 19 Santiago, Chile e-mail: [email protected] 2 Calar Alto Observatory, Centro Astronómico Hispano Alemán, C/Jesús Durbán Remón, 2-2 04004 Almería, Spain 3 Depto. Astrofísica, Centro de Astrobiología (INTA-CSIC), PO Box 78, 28691 Villanueva de la Cañada, Spain 4 Spitzer Science Center, California Institute of Technology, Pasadena, CA 91125 5 INAF – Osservatorio Astronomico di Palermo, Piazza del Parlamento 1, 90134 Palermo, Italy 6 National Astronomical Observatory, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan 7 Department of Astronomy and Astrophysics, University of Toronto, Toronto, ON M5S 3H8, Canada Received 1 February 2011 / Accepted 21 september 2011 ABSTRACT Context. Whilst there is a generally accepted evolutionary scheme for the formation of low-mass stars, the analogous processes when moving down in mass to the brown dwarf regime are not yet well understood. Aims. In this first paper, we try to compile the most complete and unbiased spectroscopically confirmed census of the population of Collinder 69, the central cluster of the Lambda Orionis star forming region, as a first step in addressing the question of how brown dwarfs and planetary mass objects form. -
Popular Names of Deep Sky (Galaxies,Nebulae and Clusters) Viciana’S List
POPULAR NAMES OF DEEP SKY (GALAXIES,NEBULAE AND CLUSTERS) VICIANA’S LIST 2ª version August 2014 There isn’t any astronomical guide or star chart without a list of popular names of deep sky objects. Given the huge amount of celestial bodies labeled only with a number, the popular names given to them serve as a friendly anchor in a broad and complicated science such as Astronomy The origin of these names is varied. Some of them come from mythology (Pleiades); others from their discoverer; some describe their shape or singularities; (for instance, a rotten egg, because of its odor); and others belong to a constellation (Great Orion Nebula); etc. The real popular names of celestial bodies are those that for some special characteristic, have been inspired by the imagination of astronomers and amateurs. The most complete list is proposed by SEDS (Students for the Exploration and Development of Space). Other sources that have been used to produce this illustrated dictionary are AstroSurf, Wikipedia, Astronomy Picture of the Day, Skymap computer program, Cartes du ciel and a large bibliography of THE NAMES OF THE UNIVERSE. If you know other name of popular deep sky objects and you think it is important to include them in the popular names’ list, please send it to [email protected] with at least three references from different websites. If you have a good photo of some of the deep sky objects, please send it with standard technical specifications and an optional comment. It will be published in the names of the Universe blog. It could also be included in the ILLUSTRATED DICTIONARY OF POPULAR NAMES OF DEEP SKY.