... The star formation history of NGC 6231 appears to be bimodal, with a first wave of star formation activity 3--5 Myr ago, followed by a new generation of stars forming # 1 Myr ago. ... Star Formation, Premain sequence Stars, Open clusters and associations The star formation history of the rich open cluster NGC 6231 has been hotly debated in the literature ever since the suggestion by Eggen (1976) that a violent process must have triggered star formation in the region. ...
Galactic coordinate system based on multi-wavelength catalogues Ping-Jie Ding, Jia-Cheng Liu, and Zi Zhu School of Astronomy and Space Science, Nanjing University, China Outline Introduction: why we need to establish a new Galactic Coordinate System ( GalCS ) Data and methods used to find a proper GalCS Results and conclusion Discussion 2 Introduction: why we need to establish a new GalCS The Galactic coordinate ... 3 The GalCS is defined by three parameters p , p and . ...
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Ссылки http://www.gao.spb.ru/english/as/j2014/presentations/ding.pdf -- 999.7 Кб -- 28.09.2014 Похожие документы
EXCERPT from BIENNIAL REVIEW REPORT 19971998 Agris J. Kalnajs June 17, 1999 1 1 Research conducted and proposed 1.1 Star Streaming The Hipparcos data was released in 1997. The top panel of Figure 1 shows a plot of the tangential velocity components along the Galactic plane in the direction pointed to by the Galactic longitude l. These stars, with distance errors less than 10%, are within 100 parsecs of the Sun and have a B - V < 0.8 . ... Such streaming will occur naturally in a barred galaxy. ...
AUTOMATIC CREATION OF THE HYPSOMETRIC MAP OF VENUS. ... The hypsometric map of Venus (1:45M) created under editing of Dr. Rodionova gives the representation of the planet relief on the basis of up-to-date data. ... The requirement was to preserve contour polygons with the areas more than 10 000 sq. km at the Venus surface, which corresponded with areas approximately more than 5 sq. km at the map. ... The other side of Venus map has been prepared. ... Surface height histograms for both Venus and Earth. ...
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Ссылки http://selena.sai.msu.ru/Laz/Publications/6_Automatic%20creation%20of%20the%20hypsometric%20map%20of%20Venus.pdf -- 116.8 Кб -- 26.02.2009 Похожие документы
ПУБЛИКАЦИИ - 2001 год . ... E.L. Afraimovich, A.T. Altyntsev, V.V. Grechnev, L.A. Leonovich The response of the ionosphere to small and large solar flares as deduced using data from the global GPS network. ... Радиоизлучение Солнца и космическая погода, Труды Всероссийской конференции по физике солнечно-земных связей (24-29 сентября 2001, Иркутск), с.11-12. ... Труды Всероссийской конференции по физике солнечно-земных связей (24-29 сентября 2001, Иркутск), с.13. ... Иркутск. ... Физика Земли, 2001, ? ...
Next: Unusual Emission near a Up: NICMOS Science Previous: The Stellar Population in . ... Three examples are presented of how ISOCAM 1 sees the process of stellar evolution. i) Standard staring and coronographic observations with ISOCAM towards BD+31 643 are presented. ... Position 4 is closest to the star; Position 6 coincides roughly with the minimum of emission seen in the images; position 7 with the ring. ... I presented three examples of the evolution of stars as seen with ISOCAM. ...
... 23 Algorithm fo r evalua tion of two burn maneuv ers using linearity Input information: ( t t E1 , rEI , v t1L , t E2 2L ( ) EI )T )T the time and the state vector of initial orbit for this time ; interval of possible thrusts for transition from initial orbit to the transfer on e; the time and the state vector of the target orbit for this time ; ... We cal culate the state vector for the initial orbit for the time t1a and the target one for the time t2 a . ...
... Local and Regional Coordinators, and OBSERVERS are needed for Friday night's spectacular Aldebaran Occultation and Graze Aldebaran is the brightest star, other than the Sun, that can be occulted by the Moon. ... Use your camcorder (or a borrowed camcorder) to record a strong local television station. ... Encourage other amateur astronomers, and other friends and relatives in the region of visibility to record the occultation with camcorders. ... This event is called an "occultation" by astronomers. ...
Experiment COLD . ... High-Latitude Background Emission . Only the narrow band of the Milky Way near b II = 0 o has been studied at centimeter wavelengths; even here, the most sensitive surveys of the Milky Way have gaps toward the anticenter. ... The right ascension where the band of sky studied comes closest to the Galactic Pole is indicated by the arrow labelled NP. the Milky Way: we detected background emission toward the anticen-ter for the first time, near the radio source W16. ...
Электронная библиотека астронома-любителя. ... библиотека . архив RSN . ... Ru.Space.News: . Август 1998 . ... Дата: 07 августа 1998 (1998-08-07) От: Alexander Bondugin Тема: 8/11: Preliminary Assessment of Space Colonization Strategies Based on Subject: 8/11: Preliminary Assessment of Space Colonization Strategies Based on Привет всем! ... STARDUST MICROCHIP UPDATE August 5, 1998 We have now collected over 992,000 names for the second microchip that will be carried on the STARDUST spacecraft. ...
... Table 2 List of Spectral Lines Used in the DEM Reconstruction N 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Ion Fe xi Fe xi Fe x Ni xvi Ca xiv Fe xii Fe xxi Fe xi Fe xi Fe xxiv Fe xii Fe xi Ca xvii Fe xii Ca xiv Fe xii (е) 180.41 182.17 184.54 185.23 186.61 186.89 187.93 188.23 188.30 192.03 192.39 192.83 192.85 193.51 193.87 195.12 log Tm (K) 6.2 6.2 6.2 6.4 6.6 6.3 7.1 6.2 6.2 7.2 6.3 6.2 6.8 6.3 6.6 ... Columns correspond to different flares; rows denote different spectral lines. ...
... Астрофотография (Модераторы: LifeIsGood , MaxMan ) > . Anyone here willing to help me test my project? ... Астрофотография . ... Благодарностей: 0 . 26 Декабрь 2009, 17:24:26 ? ... You can check a preview of my project at: http://larryo.org/work/information/unimap/index.html . ... Anyone interested to help me test it and/or feedback will be appreciated! ... Nice work . When the Linux version will be released I will try to help you with application testing and making installing packages . ...
Title: Chandra finds X-ray jets are common in low-power radio galaxies . ... Title: A sample of 6C radio sources designed to find objects at redshift > 4: III --- imaging and the radio galaxy K-z relation . ... Title: VLBA Polarimetry of Three Powerful Radio Galaxy Cores . ... Title: Observations of radio galaxy MRC 1138-262: merging galaxies embedded in a giant Lyman alpha halo . ... The URL for this page is: http://xxx.itep.ru/find/astro-ph/1/radio+galaxy/0/1/0/past,all/0/0 www-admin@xxx.lanl.gov ...
... This oral history with Dr. Eric Barron is being conducted in Tallahassee, Florida, for the NASA Headquarters Earth System Science at 20 Oral History Project. ... When I was Director of the Earth System Science Center, I wrote a proposal and became PI [principal investigator] on one of the interdisciplinary programs for the Earth Observing System [EOS]. ... I became dean because more than one department saw how I operated the Earth System Science Center. ... One is the NOAA Science Advisory Board. ...
Retrofitting a 13" Dobsonian By Dave Aucoin . ... I had retrofitted the scope, not the older box and tube, but the newer tube design, to break apart to fit in my then Chevy Chevette. ... Then my girlfriend mentioned that I should build up the pads with blocks so that the mirror box would slide properly over the Teflon and not catch on the ZHRB. ... Now the lower block, attached to the mirror box has 2 angles that have to be used for the tube to reach the upper clamp block without too much bending. ...
Belanger (609) 448-8598 vic@apink.com Assistant Director: John Miller (609) 252-1223 jmiller@princetonastronomy.org Volume 35 January 2006 Number 1 From the Director Jan 10 AAAP Meeting (Peyton Hall of Astrophysics, Princeton Campus, 8:00 PM) ... Director, continued on page 2) From the Editor Yerkes Up For Auction The University of Chicago, owner of the observatory, is receiving offers for the historic property in Williams Bay, Wisconsin. ... 2005: A Year of Progress in AAAP. ...
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Ссылки http://www.princetonastronomy.org/newsletters/01_2006sidereal.pdf -- 1035.9 Кб -- 04.01.2006 Похожие документы
... Table 1 lists all RV data for KELT-3 , and Figure 2 shows 20 TA B L E 1 RV O B S E RVAT I O N S O F K E LT- 3 BJD RV RV errora Source (TDB) (m s-1 ) (m s-1 ) 2455983.672916 -319 25 TRES 2455990.777987 -66 14 TRES 2456000.473809 -31 27 FIES 2456001.465355 103 20 FIES 2456002.514673 -259 20 FIES 2456003.552533 90 16 FIES 2456004.432251 0 16 FIES 2456018.656206 -324 14 TRES 2456019.709404 4 19 TRES 2456020.710562b -125 18 ... Both observations were able to resolve KELT-3 from...
... We have used archival very long baseline interferometry (VLBI) data of more than 3000 compact extragalactic radio sources observed at frequencies, , from 2 to 43 GHz to measure the observed angular size of VLBI cores. ... Observed full width at half-maximum (FWHM) angular size of the VLBI core component of AGNs at 2, 5, 8, 15, 24 and 43 GHz versus the absolute value of galactic latitude. ... If a source was observed over multiple epochs, the median of the observed angular size is given. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/mnras2015_452,4274.pdf -- 954.6 Кб -- 24.02.2016 Похожие документы