Stories from Physics Astronomy And
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Proto-Planetary Nebula Observing Guide
Proto-Planetary Nebula Observing Guide www.reinervogel.net RA Dec CRL 618 Westbrook Nebula 04h 42m 53.6s +36° 06' 53" PK 166-6 1 HD 44179 Red Rectangle 06h 19m 58.2s -10° 38' 14" V777 Mon OH 231.8+4.2 Rotten Egg N. 07h 42m 16.8s -14° 42' 52" Calabash N. IRAS 09371+1212 Frosty Leo 09h 39m 53.6s +11° 58' 54" CW Leonis Peanut Nebula 09h 47m 57.4s +13° 16' 44" Carbon Star with dust shell M 2-9 Butterfly Nebula 17h 05m 38.1s -10° 08' 33" PK 10+18 2 IRAS 17150-3224 Cotton Candy Nebula 17h 18m 20.0s -32° 27' 20" Hen 3-1475 Garden-sprinkler Nebula 17h 45m 14. 2s -17° 56' 47" IRAS 17423-1755 IRAS 17441-2411 Silkworm Nebula 17h 47m 13.5s -24° 12' 51" IRAS 18059-3211 Gomez' Hamburger 18h 09m 13.3s -32° 10' 48" MWC 922 Red Square Nebula 18h 21m 15s -13° 01' 27" IRAS 19024+0044 19h 05m 02.1s +00° 48' 50.9" M 1-92 Footprint Nebula 19h 36m 18.9s +29° 32' 50" Minkowski's Footprint IRAS 20068+4051 20h 08m 38.5s +41° 00' 37" CRL 2688 Egg Nebula 21h 02m 18.8s +36° 41' 38" PK 80-6 1 IRAS 22036+5306 22h 05m 30.3s +53° 21' 32.8" IRAS 23166+1655 23h 19m 12.6s +17° 11' 33.1" Southern Objects ESO 172-7 Boomerang Nebula 12h 44m 45.4s -54° 31' 11" Centaurus bipolar nebula PN G340.3-03.2 Water Lily Nebula 17h 03m 10.1s -47° 00' 27" PK 340-03 1 IRAS 17163-3907 Fried Egg Nebula 17h 19m 49.3s -39° 10' 37.9" Finder charts measure 20° (with 5° circle) and 5° (with 1° circle) and were made with Cartes du Ciel by Patrick Chevalley (http://www.ap-i.net/skychart) Images are DSS Images (blue plates, POSS II or SERCJ) and measure 30’ by 30’ (http://archive.stsci.edu/cgi- bin/dss_plate_finder) and STScI Images (Hubble Space Telescope) Downloaded from www.reinervogel.net version 12/2012 DSS images copyright notice: The Digitized Sky Survey was produced at the Space Telescope Science Institute under U.S. -
Macrocosmo Nº33
HA MAIS DE DOIS ANOS DIFUNDINDO A ASTRONOMIA EM LÍNGUA PORTUGUESA K Y . v HE iniacroCOsmo.com SN 1808-0731 Ano III - Edição n° 33 - Agosto de 2006 * t i •■•'• bSÈlÈWW-'^Sif J fé . ’ ' w s » ws» ■ ' v> í- < • , -N V Í ’\ * ' "fc i 1 7 í l ! - 4 'T\ i V ■ }'- ■t i' ' % r ! ■ 7 ji; ■ 'Í t, ■ ,T $ -f . 3 j i A 'A ! : 1 l 4/ í o dia que o ceu explodiu! t \ Constelação de Andrômeda - Parte II Desnudando a princesa acorrentada £ Dicas Digitais: Softwares e afins, ATM, cursos online e publicações eletrônicas revista macroCOSMO .com Ano III - Edição n° 33 - Agosto de I2006 Editorial Além da órbita de Marte está o cinturão de asteróides, uma região povoada com Redação o material que restou da formação do Sistema Solar. Longe de serem chamados como simples pedras espaciais, os asteróides são objetos rochosos e/ou metálicos, [email protected] sem atmosfera, que estão em órbita do Sol, mas são pequenos demais para serem considerados como planetas. Até agora já foram descobertos mais de 70 Diretor Editor Chefe mil asteróides, a maior parte situados no cinturão de asteróides entre as órbitas Hemerson Brandão de Marte e Júpiter. [email protected] Além desse cinturão podemos encontrar pequenos grupos de asteróides isolados chamados de Troianos que compartilham a mesma órbita de Júpiter. Existem Editora Científica também aqueles que possuem órbitas livres, como é o caso de Hidalgo, Apolo e Walkiria Schulz Ícaro. [email protected] Quando um desses asteróides cruza a nossa órbita temos as crateras de impacto. A maior cratera visível de nosso planeta é a Meteor Crater, com cerca de 1 km de Diagramadores diâmetro e 600 metros de profundidade. -
Highly Collimated Jet Spotted from the Red Square Nebula 5 February 2019, by Tomasz Nowakowski
Highly collimated jet spotted from the Red Square Nebula 5 February 2019, by Tomasz Nowakowski Now, a new study conducted by University of Colorado's John Bally and Zen H. Chia, sheds more light on the nature of RSN and its host. Using the Double Imaging Spectrograph (DIS) on the 3.5 meter telescope at the Apache Point Observatory (APO) located near Sunspot, New Mexico, the astronomers unveiled the presence of a collimated jet orthogonal to the previously identified extended nebula associated with RSN. "Deep, narrow-band images of the Red Square Nebula and its source star, MWC 922, reveal a highly collimated and segmented, parsec-scale jet oriented orthogonal to the previously identified emission-line nebula which can be traced towards the southwest," the researchers wrote in the paper. According to the study, the jet, as well as RSN, appear to be externally ionized. Describing the structure of the newfound jet, Bally and Chia revealed that it consists of a pair of segments with The Red Square Nebula. Image credit: Peter Tuthill, sizes of 0.5 light years each, on either side of the Sydney University Physics Dept., and the Palomar and host star, separated by gaps. They noted that the W.M. Keck observatories. most distant jet segments disappear at around 1.97 light years from the star. The researchers calculated that the speed of the jet Astronomers have detected a highly collimated, is around 500 km/s and that the jet's electron bipolar jet from the so-called Red Square Nebula density is between 50 and 100 cm-3. -
Serpens – the Serpent
A JPL Image of surface of Mars, and JPL Ingenuity Helicioptor illustration, in flight Monthly Meeting May 10th at 7:00 PM at HRPO, and via Jitsi (Monthly meetings are on 2nd Mondays at Highland Road Park Observatory, will also broadcast via. (meet.jit.si/BRASMeet). PRESENTATION: Dr. Alan Hale, professional astronomer and co-discoverer of Comet Hale-Bopp, among other endeavors. What's In This Issue? President’s Message Member Meeting Minutes Business Meeting Minutes Outreach Report Light Pollution Committee Report Globe at Night SubReddit and Discord Messages from the HRPO REMOTE DISCUSSION Solar Viewing International Astronomy Day American Radio Relay League Field Day Observing Notes: Serpens - The Serpent & Mythology Like this newsletter? See PAST ISSUES online back to 2009 Visit us on Facebook – Baton Rouge Astronomical Society BRAS YouTube Channel Baton Rouge Astronomical Society Newsletter, Night Visions Page 2 of 20 May 2021 President’s Message Ahhh, welcome to May, the last pleasant month in Louisiana before the start of the hurricane season and the brutal summer months that follow. April flew by pretty quickly, and with the world slowly thawing from the long winter, why shouldn’t it? To celebrate, we decided we’re going to try to start holding our monthly meetings at Highland Road Park Observatory again, only with the added twist of incorporating an on-line component for those who for whatever reason don’t feel like making it out. To that end, we’ll have both our usual live broadcast on the BRAS YouTube channel and the Brasmeet page on Jitsi—which is where our out of town guests and, at least this month, our guest speaker can join us. -
MWC 922 - the Red Square Nebula
The Diffuse Interstellar Bands Proceedings IAU Symposium No. 297, 2013 c International Astronomical Union 2014 J.Cami&N.L.J.Cox,eds. doi:10.1017/S1743921313015913 Search for DIBs in Emission: MWC 922 - The Red Square Nebula N. Wehres1,2,†, B. Ochsendorf3, J. Bally2, T. Snow1,4, V. Bierbaum1,2, N. L. J. Cox5,L.Kaper6 andA.G.G.M.Tielens3 1 Center for Astrophysics and Space Astronomy, 389 UCB, University of Colorado, Boulder, CO 80309-0389, USA email: [email protected] 2 Department of Chemistry and Biochemistry, 215 UCB, University of Colorado, Boulder, CO 80309-0215, USA 3 Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, The Netherlands 4 Department of Astrophysical and Planetary Sciences, 391 UCB, University of Colorado, Boulder, CO 80309-0391, USA 5 Instituut voor Sterrenkunde, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium 6 Astronomical Institute Anton Pannekoek, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands Abstract. This work focusses on MWC 922, the central object in the Red Square Nebula. We obtained low and medium resolution spectra of both, the central object and the surrounding nebula, using the DIS and TSpec spectrograph. The spectra show the whole spectral range be- tween ∼3 500 Aup˚ to ∼25 000 A.˚ The central object shows a plethora of emission lines, including many Fe II and forbidden Fe [II] lines. Here, we present the inventory of the emission lines of the central object, MWC 922. Future work will comprise the identification of the nebula emission lines by using newly obtained X-Shooter spectra. -
A Rotating Fast Bipolar Wind and Disk System Around the B [E]-Type Star
Astronomy & Astrophysics manuscript no. ms c ESO 2021 August 11, 2021 A rotating fast bipolar wind and disk system around the B[e]-type star MWC 922 C. Sánchez Contreras1, A. Báez-Rubio2, J. Alcolea3, A. Castro-Carrizo4, V. Bujarrabal5, J. Martín-Pintado2, and D. Tafoya6 1 Centro de Astrobiología (CSIC-INTA), ESAC, Camino Bajo del Castillo s/n, Urb. Villafranca del Castillo, E-28691 Villanueva de la Cañada, Madrid, Spain e-mail: [email protected] 2 Centro de Astrobiología (CSIC-INTA), Ctra de Torrejón a Ajalvir, km 4, 28850 Torrejón de Ardoz, Madrid, Spain 3 Observatorio Astronómico Nacional (IGN), Alfonso XII No 3, 28014 Madrid, Spain 4 Institut de Radioastronomie Millimetrique, 300 rue de la Piscine, 38406 Saint Martin d’Heres, France 5 Observatorio Astronómico Nacional (IGN), Ap 112, 28803 Alcalá de Henares, Madrid, Spain 6 Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, 439 92 Onsala, Sweden ABSTRACT We present interferometric observations with the Atacama Large Millimeter Array (ALMA) of the free-free continuum and recombi- nation line emission at 1 and 3 mm of the "Red Square Nebula" surrounding the B[e]-type star MWC922. The unknown distance to the source is usually taken to be d=1.7-3 kpc. The unprecedented angular resolution (up to ∼000: 02) and exquisite sensitivity of these data unveil, for the first time, the structure and kinematics of the emerging, compact ionized region at its center. We imaged the line emission of H30α and H39α, previously detected with single-dish observations, as well as of H51, H55γ, and H63δ, detected for the first time in this work. -
Al-Sūfī's Book of the Images of the Fixed Stars and Its Influence On
Al-Sūfī’s Book of the Images of the Fixed Stars and its Influence on Islamic and European Celestial Cartography Robert H. van Gent Institute for History and Foundations of Science Utrecht University, The Netherlands Biographical Sketch of al-Sūfī Abū al-Husayn ‘Abd al-Rahmānibn‘Umar al-Sūfī was born in Rayy (near Tehrān) on 7 December 903 [14 Muharram 291 AH] and died in Baghdād on 25 May 986 [13 Muharram 376 AH]. Al-Sūfī wrote on astrology, astronomy, alchemy and mathematics. His best-known work is the KitābSuwaral- Kawākib al-Thābitah (“Book of the Images of the Fixed Stars”) which he completed in Shīrāz around 964. Originally written in Arabic, it was later translated into Persian and also into Latin. He also wrote a comprehensive treatise on the astrolabe in 1760 chapters which only survives in a shortened version in 170 chapters. The lunar crater Azophi and the minor planet 12621 Alsufi commemorate his achievements in astronomy. Detail from Albrecht Durer’s woodcut map Imagines coeli Septentrionales cum duodecim imaginibus zodiaci (1515) The Star Catalogue of Claudius Ptolemy of Alexandria (c. 150 CE) Almagest, books VII & VIII Contains 1028 stars, of which three are duplicate entries, divided into 48 separate constellations. Five stars are listed as ‘nebulous’ and six stars are listed as ‘reddish’. Adopts the magnitude scale of Hipparchus of Nicaea (c. 130 BCE) Ecliptic coordinate system Mean deviation in latitude: 0.3° Mean deviation in longitude: 0.3° Systematic deviation in longitude: 1.0° Epoch: 1 Thoth, 885 Nabonassar [= 20 July 137 CE] Ptolemy assumed a constant rate of precession amounting to 1.0° per century Oil on poplar panel attributed to Joos van Wassenhove (c. -
The COLOUR of CREATION Observing and Astrophotography Targets “At a Glance” Guide
The COLOUR of CREATION observing and astrophotography targets “at a glance” guide. (Naked eye, binoculars, small and “monster” scopes) Dear fellow amateur astronomer. Please note - this is a work in progress – compiled from several sources - and undoubtedly WILL contain inaccuracies. It would therefor be HIGHLY appreciated if readers would be so kind as to forward ANY corrections and/ or additions (as the document is still obviously incomplete) to: [email protected]. The document will be updated/ revised/ expanded* on a regular basis, replacing the existing document on the ASSA Pretoria website, as well as on the website: coloursofcreation.co.za . This is by no means intended to be a complete nor an exhaustive listing, but rather an “at a glance guide” (2nd column), that will hopefully assist in choosing or eliminating certain objects in a specific constellation for further research, to determine suitability for observation or astrophotography. There is NO copy right - download at will. Warm regards. JohanM. *Edition 1: June 2016 (“Pre-Karoo Star Party version”). “To me, one of the wonders and lures of astronomy is observing a galaxy… realizing you are detecting ancient photons, emitted by billions of stars, reduced to a magnitude below naked eye detection…lying at a distance beyond comprehension...” ASSA 100. (Auke Slotegraaf). Messier objects. Apparent size: degrees, arc minutes, arc seconds. Interesting info. AKA’s. Emphasis, correction. Coordinates, location. Stars, star groups, etc. Variable stars. Double stars. (Only a small number included. “Colourful Ds. descriptions” taken from the book by Sissy Haas). Carbon star. C Asterisma. (Including many “Streicher” objects, taken from Asterism. -
A Midinfrared Imaging Catalogue of Postasymptotic Giant Branch Stars
Mon. Not. R. Astron. Soc. 417, 32–92 (2011) doi:10.1111/j.1365-2966.2011.18557.x A mid-infrared imaging catalogue of post-asymptotic giant branch stars Eric Lagadec,1† Tijl Verhoelst,2 Djamel Mekarnia,´ 3 Olga Suarez,´ 3,4 Albert A. Zijlstra,5 Philippe Bendjoya,3 Ryszard Szczerba,6 Olivier Chesneau,3 Hans Van Winckel,2 Michael J. Barlow,7 Mikako Matsuura,7,8 Janet E. Bowey,7 Silvia Lorenz-Martins9 and Tim Gledhill10 1European Southern Observatory, Karl Schwarzschildstrasse 2, Garching 85748, Germany 2Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium 3Laboratoire Fizeau, OCA/UNS/CNRS UMR6525, 06304 Nice Cedex 4, France 4Instituto de Astrofsica de Andaluca, CSIC, Apartado 3004, 18080 Granada, Spain 5Jodrell Bank Centre for Astrophysics, School of Physics & Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL 6N. Copernicus Astronomical Center, Rabianska 8, 87-100 Torun, Poland 7Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT 8Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey RH5 6NT 9Observatorio do Valongo, UFRJ, Ladeira do Pedro Antonio 43, 20080-090 Saude, Rio de Janeiro, Brazil 10Science and Technology Research Institute, University of Hertfordshire, College Lane, Hatfield AL10 9AB Accepted 2011 February 17. Received 2011 February 9; in original form 2010 December 10 ABSTRACT Post-asymptotic giant branch (post-AGB) stars are key objects for the study of the dramatic morphological changes of low- to intermediate-mass stars on their evolution from the AGB towards the planetary nebula stage. There is growing evidence that binary interaction processes may very well have a determining role in the shaping process of many objects, but so far direct evidence is still weak. -
Monthly Observer's Challenge
MONTHLY OBSERVER’S CHALLENGE Las Vegas Astronomical Society Compiled by: Roger Ivester, Boiling Springs, North Carolina & Fred Rayworth, Las Vegas, Nevada With special assistance from: Rob Lambert, Las Vegas, Nevada OCTOBER 2014 Introduction The purpose of the observer’s challenge is to encourage the pursuit of visual observing. It is open to everyone that is interested, and if you are able to contribute notes, drawings, or photographs, we will be happy to include them in our monthly summary. Observing is not only a pleasure, but an art. With the main focus of amateur astronomy on astrophotography, many times people tend to forget how it was in the days before cameras, clock drives, and GOTO. Astronomy depended on what was seen through the eyepiece. Not only did it satisfy an innate curiosity, but it allowed the first astronomers to discover the beauty and the wonderment of the night sky. Before photography, all observations depended on what the astronomer saw in the eyepiece, and how they recorded their observations. This was done through notes and drawings and that is the tradition we are stressing in the observers challenge. By combining our visual observations with our drawings, and sometimes, astrophotography (from those with the equipment and talent to do so), we get a unique understanding of what it is like to look through an eyepiece, and to see what is really there. The hope is that you will read through these notes and become inspired to take more time at the eyepiece studying each object, and looking for those subtle details that you might never have noticed before. -
Almanacco Astronomico 2002 – Introduzione
Almanacco Astronomico per l’anno 2002 Sergio Alessandrelli C.C.C.D.S. - Hipparcos La Luna – Principali formazioni geologiche Almanacco Astronomico per l’anno 2002 A tutti gli amici astrofili… 1 Almanacco Astronomico 2002 – Introduzione Introduzione all’Almanacco Astronomico 2002 Il presente Almanacco Astronomico è stato realizzato utilizzando comuni programmi di calcolo astronomico facilmente reperibili sul mercato del software, ovvero scaricabili gratuitamente tramite Internet. La precisione nei calcoli è quindi quella tipica per questo tipo di software, ossia sufficiente per gli usi dell’astrofilo medio. Tutti gli eventi sono stati calcolati per le coordinate di Roma (Lat. 41° 52’ 48” N, Long. 12° 30’ 00” E) e gli orari espressi (tranne laddove altrimenti specificato) in tempo universale. 2 Almanacco Astronomico 2002 – Calendario del 2002 Calendario del 2002 January February March Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa 1 2 3 4 5 1 2 1 2 6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9 13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16 20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23 27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30 31 April May June Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa 1 2 3 4 5 6 1 2 3 4 1 7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8 14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15 21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22 28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29 30 July August September Su Mo Tu We -
S. Drew Chojnowski
S. Drew Chojnowski Contact 3245 E University Ave, Apt 1016 434-996-9855 Information Las Cruces, NM 88011 [email protected] Current Beginning January 2014 I have served as the plate design coordinator for the SDSS- Position IV/APOGEE2 survey, in charge of among other things developing, maintaining, and running APOGEE target selection & plate design software (written in IDL), delivering final plug-plate target lists, loading target & plate information into APO databases, and creating targeting flat files for data releases. Prior to this, I was the SDSS- III/APOGEE1 plate design coordinator from 12/2011 { 12/2013. I was stationed at the University of Virginia until June 2014, then relocated to New Mexico State University upon request. I am an SDSS-III architect and leader of the APOGEE hot/emission stars group. Research Spectroscopy, emission line stars, AGN/Seyfert galaxies, black holes and other compact Interests objects, spectral classification, binary stars, peculiar stars Education Texas Christian University (TCU), Fort Worth, TX B.S., Physics & Astronomy, Aug 2011 • Projects: (1) Luminous Blue Compact Galaxies in SDSS DR1-7, (2) Galaxy- sized Clouds of AGN-ionized Gas, (3) Bulk Radial Velocities of Open Clusters • Advisors: (1) Michael Fanelli, (2) Bill Keel (Alabama), (3) Peter Frinchaboy Tarrant County College (TCC), Fort Worth, TX Attended from August 2006 through May 2007, then transferred to TCU. Louisiana State University (LSU), Baton Rouge, LA Attended from August 2004 through February 2006. Returned to Forth Worth due to complications in aftermath of Hurricanes Katrina and Rita. Paid Summer Research Assistant June 2011 to Aug 2011 Undergraduate Dept.