Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.atnf.csiro.au/news/press/media_rel98.html
Дата изменения: Unknown
Дата индексирования: Tue Oct 2 00:56:52 2012
Кодировка:
ATNF Media Releases (1998)

ATNF Media Releases 1998






1 Dec 1998

'MIRAGE' USED TO MEASURE AGE OF UNIVERSE

An international team led by a young Australian scientist has used CSIRO's Australia Telescope to measure how fast the Universe is expanding - and found it to be both older and larger than previously thought.

The expansion is measured as a number called the Hubble Constant. It is used to calculate how big and how old the Universe is.

The observing team used a new method that avoids the built-in uncertainties in older methods and found the universe to be 15 billion years old.

Astronomers have been wrangling over the value of the Hubble Constant -- a number that indicates the expansion rate of the universe and hence its age -- for several decades. Measuring it is a key problem that the Hubble Space Telescope was built to solve.

"Our value is about 20% lower than the one got with the Hubble Space Telescope in 1994," said Dr Jim Lovell, leader of the team that made the measurement.


More information:

Dr David Jauncey, CSIRO.
Tel: (02) 6216 7220 (B.H.)
Email: Dave.Jauncey@atnf.csiro.au

Dr Jim Lovell, Institute of Space and Astronautical Science, Japan.
Tel: (+81) 427-59-8346
Email: jlovell@vsop.isas.ac.jp

See also:
In Australia:
http://www-ra.phys.utas.edu.au/~jlovell/simlens
In Japan:
http://halca.vsop.isas.ac.jp/~jlovell/simlens


24 Nov 1998

AUSSIES HELP HUBBLE HUNT ANCIENT GALAXIES

Australian telescopes have helped the Hubble Space Telescope (HST) find thousands of new galaxies.

The Anglo-Australian Observatory and CSIRO helped choose the patch of sky in which the HST found the previously unknown galaxies. They are now helping Hubble astronomers to learn more about these new discoveries.

Preliminary HST results were released today by NASA's Space Telescope Science Institute, as were the results from the Australian institutions.


More information:

Dr Ray Norris, CSIRO
Tel: (02) 9372 4416 (bh), (02) 9369 9591 (ah), 0417 288 307 (mobile)
E-mail: rnorris@atnf.csiro.au

Dr Brian Boyle, Anglo-Australian Observatory
Tel: (02) 9372 4811 (bh), (02) 9498 1584 (ah)
E-mail: director@aaoepp.aao.gov.au


See also:
http://oposite.stsci.edu/pubinfo/1998/41/
http://oposite.stsci.edu/pubinfo/pictures.html
http://www.atnf.csiro.au/~rnorris/hdf-s
http://local.aao.gov.au/AAO/hdfs/


5 Nov 1998

PARKES RADIO TELESCOPE
PUTS 1000 PULSAR RUNS ON THE BOARD.

A team using CSIRO's Parkes radio telescope has just found the thousandth pulsar known to science.

The telescope holds the international record for having discovered the largest number of these small spinning stars since the first was found in 1967. The new survey is clocking them up more than ten times faster than any previous search, anywhere - about one for each hour the telescope is used - and has already found more than 200.


Contacts:
Dr Dick Manchester, CSIRO Australia Telescope National Facility.
Tel:(02) 9372-4313 (bh), (02) 9449-4534 (ah)
Fax (02) 9372-4310
E-mail:rmanches@atnf.csiro.au

Professor Vicky Kaspi, Department of Physics and Center for Space Research, MIT.
Tel: +1 617-253-5169
Fax: +1 617-253-0861
E-mail:vicky@space.mit.edu

Dr Fernando Camilo, University of Manchester, UK.
Tel: +44-1477-571-321
Fax: +44-1477-571-618
E-mail:fc@jb.man.ac.uk

See also: Pulsar - Supernova Remnant Project, The Parkes 21 cm Multibeam Project, CSIRO Media Release.


20 August 1998

CAUGHT RED-HANDED:
OUR GALAXY IS DESTRYING ITS NEIGHBOURS

Astronomers using the CSIRO's Parkes radio telescope have made a picture that shows our galaxy ripping apart its nearest neighbours.

Contacts:
Dr Lister Staveley-Smith, CSIRO Australia Telescope National Facility
Tel. (02) 9372-4271 (work), (02) 9871-1307 (home)
Email: lstavele@atnf.csiro.au

Dr Brad Gibson, Mount Stromlo and Siding Spring Observatories, Australian National University
Email: gibson@mso.anu.edu.au

Dr Rachel Webster, University of Melbourne
Email: rwebster@physics.unimelb.edu.au

Prof Ron Ekers, CSIRO Australia Telescope National Facility
Email: rekers@atnf.csiro.au

See also: Nature paper, The Parkes 21 cm Multibeam Project, Related Pictures.


9 June 1998

ASTRONOMERS FIND GALAXIES HIDDEN BEHIND THE MILKY WAY

About one-quarter of the distant Universe is hidden from photographic exploration by dust in our own Milky Way galaxy. Now astronomers are mapping unseen galaxies using radio telescopes, unveiling the so-called "Zone-of-Avoidance".

Contacs:
Dr. Patricia Henning


8 May 1998

AUSSIES FIRST TO SEE LIKELY BLACK HOLE BIRTH

Australian astronomers may be witnessing what has never been seen before - a black hole being born as the core of a supermassive star collapses in on itself.

Fireball in ESO184-82

Contacts:
Professor Ron Ekers, Director, CSIRO Australia Telescope National Facility
Tel: 02 9372 4301 (BH), 02 9869 8656, email: director@atnf.csiro.au

Dr Brian Boyle, Director, Anglo-Australian Observatory
Tel: 02 9372 4811 (BH), email: director@aaoepp.aao.gov.au

Dr Elaine Sadler, University of Sydney
Tel: 02 9351 2622 (BH), 02 9922 6368 (AH), email: ems@physics.usyd.edu.au

Dr Dale Frail, US National Radio Astronomy Observatory
* 16 hours behind Eastern Australian Time*
Tel.: 1-505-835-9115 (home), 1-505-835-7338 (work), email: dfrail@nrao.edu

See also the ATCA Gamma-Ray-Burst Page, Optical Pictures of ESO184-82, Selected GRBs and APOD


7 May 1998

STINGRAY IN THE SKY SPARKS NEW THEORY

Australian astronomers have put forward a new theory to explain a weird stingray shaped remnant of a giant exploded star, or supernova.

stingray shaped remnant

Contact:
Mr. Bryan Gaensler
CSIRO Australia Telescope National Facility & University of Sydney
phone: 02 9372 4263 (ATNF), 02 9351 7688 (USyd)


18 February 1998

AUSTRALIA TO SHARE IN "HEAVENLY TWINS"

The Australian Academy of Science today welcomed the announcement by the Minister for Education, Dr. David Kemp, that Australia is to join the International Gemini Project now building two astronomical telescopes for optical and infrared wavelengths in Hawaii and Chile.

Gemini dome at Mouna Kea

Contacts:
Sir Gustav Nossal: 03 9344 6946 (Dept. Pathology, Uni. of Melbourne)
Prof. Jeremy Mould: 02 6249 0266 (Director, Mount Stromlo and Siding Spring Observatories)

Academy Secretariat:
Trish Nicholls: 02 6247 3966 (Australian Academy of Science Secretariat)


February 1998

TELESCOPE DREAMING (ABC Science-Lab)

It's 10 pm on 5 March, 2013, and you've just checked the Net for the latest results on a newly discovered parallel universe.
You, and thousands of other people in your city, are taking part in a giant new experiment in astronomy.

Contacts:
Helen Sim, CSIRO Australia Telescope National Facility.


11 January 1998

ASTRONOMERS TAKE PULSE OF DOOMED STAR

CSIRO's Australia Telescope has tracked the throbbing 'pulse' of a bizarre gigantic star called Eta Carinae, a meeting of the American Astronomical Society (AAS) in Washington D.C. was told on Thursday.

Contacts:
Dr. Bob Duncan, CSIRO Australia Telescope National Facility
(phone: 02 9372 4260 (bh) or 02 9484 1375 (ah))
Dr. Stephen White, Department of Astronomy, University of Maryland, USA
(phone: (301) 405 1547, fax (301) 314 9067, www-homepage)

Eta Carina HST image Eta Carina HST image Radio image

General public relations enquiries should be directed to:

Helen Sim (hsim@atnf.csiro.au) --- Phone: +61 (0) 2 9372 4251, Fax: +61 (0)2 9372 4310



This page is maintained by Bärbel Koribalsk
Last Modified: