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  • Phys 811 Web Page
    The first is the Annual Reviews of Astronomy and Astrophysics I Irwin have copies to 1992 Other astronomy professors in our department have earlier copies and the library has a complete set The other starting place is to search under a name or topic pick some key words using the abstract service I ve provided some names below in parentheses Restricting the date range is a good idea Otherwise just

    Original URL path: http://www.astro.queensu.ca/~irwin/phy811/topics.html (2016-02-13)
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  • Phys 813 Web Page
    813 Assignments ASSIGNMENT 1 Assigned Sept 23 Due Oct 7 ASSIGNMENT 2 Assigned Oct 7 Due Oct 21 ASSIGNMENT 3 Assigned Oct 21 Due Nov 4 Last revised Oct 17

    Original URL path: http://www.astro.queensu.ca/~irwin/phy813/assignments.html (2016-02-13)
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  • Phys 813 Web Page
    have been done what science logic leads to the conclusions and what uncertainties or assumptions are involved The written report does not have a specific length please use your judgment though I would think that 5 pages would be rather lean To present your topic there isn t much time Half an hour really is only 20 to 25 minutes with allowance for a few questions So for this part

    Original URL path: http://www.astro.queensu.ca/~irwin/phy813/presentations.html (2016-02-13)
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  • Phys 814 Outline
    this 25 is allotted to an in class presentation which will also be written up and distributed to the other students A final oral exam will constitute the other 25 of the grade Please see Dr Hanes for the evaluation of Part II of the course INSTRUCTOR Judith Irwin Office 308E Stirling Hall Ph 533 2717 email irwin astro queensu ca WEB PAGE Click from Irwin s home page at http www astro queensu ca irwin SUMMARY Part I of this course Irwin deals with galaxies their classification the wide range of observed types and their stellar and gaseous contents Also included will be an introduction to the relationships between galaxies e g through interactions and clustering and their formation and evolution The emphasis will be on seeking common and minimal parameters to understand the observed properties Intersting hot topics in galaxy research will be taken up by students in class presentations COURSE CONTENT Introduction and references Galaxy classification the search for a galaxy H R diagram the historical optical bias the galaxy manifold and fundamental plane properties as a function of Hubble Type The stellar content of galaxies population synthesis the intrinsic shape of ellipticals radial profiles of galaxies

    Original URL path: http://www.astro.queensu.ca/~irwin/phy814/outline.html (2016-02-13)
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  • Phys 814 Reference
    Ostlie Addison Wedley 1996 Atlasses and Catalogues Harcopy list to be supplied in class On Line Resources The NASA Extragalactic Data Base NED http ned ipac caltech edu The NASA Astrophysics Data System ADS http adsabs harvard edu The Astronomy Paper and Abstract Query Form at http adsabs harvard edu abstract service html is particularly useful The Canadian Astronomical Data Center CADC http cadcwww hia nrc ca Some Galaxy Images

    Original URL path: http://www.astro.queensu.ca/~irwin/phy814/reference.html (2016-02-13)
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  • Phys 814 Web Page
    prepare hard copy instead please hand in the copy to me and also make a copy for the 3 ringed binder in the Physics Library Reading Room for the other students There are a couple of good starting places for any of these topics The first is the Annual Reviews of Astronomy and Astrophysics I have copies to 1992 Other astronomy professors in our department have earlier copies and the library has a complete set The other starting place is to search under a name or topic pick some key words using the abstract service I ve provided some names below in parentheses Restricting the date range is a good idea Otherwise just search on some title words Student names in square brackets indicate who has requested this topic Low Surface Brightness LSB Galaxies Greg Bothun Cooling Flows Origins and Consequences Andrew Fabian Tom Merrall Unified Theories of Active Galactic Nuclei AGN Right or Wrong Joe MacMillan Dwarf Elliptical Galaxies What Makes them Different from Bright Ellipticals Ultraluminous IR Galaxies Dave Sanders Rupinder Brar Galaxy Mass to Light Ratios Mustapha Ishak B The Impact of Large Sky Surveys on Galaxy Research Search on Sloan Digital Sky Survey for example Globular

    Original URL path: http://www.astro.queensu.ca/~irwin/phy814/topics.html (2016-02-13)
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  • Phys 814 Web Page
    Hall TEL 613 533 2717 Email Dr J Irwin Extragalactic Globular Cluster Systems Steve Bickerton Ultraluminous Infrared Galaxies Rupinder Brar Galactic Interactions Tara Chaves The Unification of Active Galactic Nuclei Joe MacMillan Cooling Flows Tom Merrall High Velocity Clouds Dave

    Original URL path: http://www.astro.queensu.ca/~irwin/phy814/writeups.html (2016-02-13)
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  • Aug 23 Fireball
    24 event UT Several reports of sound have now been submitted Two of these came from Port Hope Both of these reports indicated that the sound was simultaneous with the light one indicated that the sound was like popping the other like whistling For more information on simultaneous sound see very low frequency radiation Two other reports of delayed sounds were also submitted One was from Baltimore Ontario indicating that a deep rolling thunder like sound was heard perhaps 2 to 3 minutes after the light The second report of delayed sound came from a location on the north shore of Rice Lake at the mouth of the Indian River where the witness claimed that a popping sound was heard about 2 seconds after the light The trajectory was basically east to west with a slight NE SW angle Based on what were subjectively believed to be more reliable reports from the many received e g observer made a measurement or was very near the end point an attempt was made to determine the location of the end point of the trajectory by simple graphical methods on a map The closest town near the resulting intersection point is Harwood Ontario on the south shore of Rice Lake Based on this information on Friday Sept 6 two weeks after the event more than 100 letters were delivered to mailboxes in the Harwood area by Jayanne English Judith Irwin and Irene Brueckner Irwin Here s Jayanne and Irene Picture must be stretched horizontally As a result of this effort several more calls were received one from the witness indicated above Indian River who heard the delayed popping sound and one from an eyewitness who was situated in Harwood Both witnesses had difficulty identifying a start stop azimuth and altitude with the north shore observer indicating an E to W trajectory and the south shore observer indicating a S to N trajectory In both cases the fireball was observed close to the zenith Several other members of the RASC Kingston Centre later also drove to the area and deposited letters in areas not covered previously As a result of this the Bewdley Bugle also printed the letter later in September Several more phone calls were received at least one of which was useful compass measurement Several other reports near the end point could potentially be useful if the witness were interviewed since they could not describe position during a phone call but could probably point out the position in person The more recent reports confirm a visible light end point within a few km of Harwood Several photographs were taken of this event one of the fireball itself and several others of the smoke trail Some detail was lost in the scanning and the resulting colour is somewhat off in each case Positional information has yet to be fully exploited from these images The fireball photograph was taken by Sheila Howarth from Kingston Pittsburgh Township This observer had enough time to reach into

    Original URL path: http://www.astro.queensu.ca/~irwin/fireballs/aug_23.html (2016-02-13)
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