What Moves Milky Way
projection of the cluster population within 800 million light-years
of the Milky Way. The Milky Way's motion through space is due to
a combination of the gravitational pull of the Great Attractor
(small arrows) and the pull of the Shapley Supercluster, which
produces a large-scale flow in which much of the Universe near
our galaxy is streaming toward the more massive supercluster (large
arrows). Credit: UH Manoa’s Institute for Astronomy.
A new survey by UH astronomers found that in a tug-of-war of cosmic
proportions the Milky Way galaxy is being pulled toward the largest
concentration of matter in the observable Universe. This finding
was presented by graduate student Dale D. Kocevski and
collaborators at the American Astronomical Society meeting. The
research team includes Harald Ebeling and R.
Brent Tully of the Institute for Astronomy and Chris
R. Mullis, a UH alumnus at the University of Michigan.
Astronomers have long known that the Milky Way is moving toward
the constellation Centaurus but the reason for the movement remained
a topic of debate. It was suggested that the motion was due to
the gravitational pull of a nearby large concentration of matter
dubbed the Great Attractor.
However, the research team, using a new X-ray survey, determined
that a massive association of galaxies over 500 million light-years
away called the Shapley Supercluseter is winning the tug-of-war.
The study shows that our galaxy's journey through space is not
entirely due to the pull of nearby galaxies, but is affected by
much farther regions of the Universe than previously thought.
the press release.
Star Formation Discovery Made
| Sean Andrews
|| Jonathan Williams
Using sensitive radio cameras on telescopes at the Mauna Kea Observatories,
Institute for Astronomy graduate student Sean
Andrews and Assistant Astronomer Jonathan
Williams examined the swirling disks of gas and dust that
surround young stars in the Taurus region of the sky to determine
how the dust changes as disks evolve. They found that the disks
rapidly disappear and concluded that stars have only a few million
years to get started on making planets, a far shorter time than
conventional theories require. The new evidence was presented at
the national meeting of the American Astronomical Society in Washington,
“We expected that disks would not disappear so quickly at
radio wavelengths, but this was not the case in general,” says
Andrews, “The dust is either being dispersed, dumped onto
the star, or growing into large clumps that are difficult to detect.” On
a scale in which a typical star’s 10-billion-year lifetime
is compressed to the average human lifespan, the disks would disappear
within the first week.
more about it.
UH Submits Budget Request
UH administrators presented the operating budget and the system’s
capital improvement budget requests at a joint hearing of the Senate
Ways and Means and House Finance Committees on Jan. 12.
the press release for highlights of the university’s request.
UARC Informational Meeting Set
An informational meeting concerning the proposed University Affiliated
Research Center will be held on Fri., Jan. 20 at 1 p.m. in the
Campus Center Ballroom on the UH Manoa campus. The informational
meeting represents the next step in the process outlined several
months ago, at which all in the broader community will have a chance
to share their perspective on this issue; no board decision will
be taken at this informational meeting.
more about it.
Engineering Dean Finalists Visit Manoa
Finalists for dean’s position at Manoa College of Engineering
will be holding public presenatations on campus. Each candidate
will speak on the future of engineering in today’s society.
• Mun Young Choi, professor and department head, mechanical
engineering and mechanics department and associate dean for research
and graduate studies, College of Engineering, Drexel University. His
presentation is on Mon., Jan. 23, 4:30 p.m., MSB 114.
• Peter E. Crouch, dean, Ira A. Fulton School of Engineering
and vice provost for global engagement, Arizona State University. Crouch’s presentation is on Thurs.,
Jan. 26, 4:30 p.m., MSB 114.
• Stanley B. Grant, professor of environmental engineering,
chemical and biochemical engineering and material sciences department,
Henry Samueli School of Engineering, University of California,
Irvine. Grant’s presentation is on Wed., Jan.
18, 4:30 p.m., HIG 110.
• Lalit Raj Verma, professor and department head, biological
and agricultural engineering department, University of Arkansas. His
presentation is on Mon., Jan. 30, 4:30 p.m., MSB 114.
For more information read the press
release or go to the executive
search Web site.