At
the
University
of
Michigan, a professor in the
Department of Astronomy is
taking the phrase “reach for the
stars” to a whole new level.
In
a
new
discovery,
Astronomy Prof. Sally Oey and
her team observed runaway
stars using Gaia, a new satellite
launched
by
the
European
Space Agency.
“What we were originally
trying to do was look for
runaway stars and those are
massive stars,” Oey said. “So
they’re moving really fast and …
this satellite is able to see very
tiny motions of stars in the sky
with extreme accuracy.”
LSA junior Johnny Dorigo
Jones has been working with
Oey monitoring runaway stars
for a year. He said his primary
role was to synthesize the
data and construct pictorial
representations of the findings.
“My main role with this
paper was working with all the
data from Gaia and creating the
image showing all of the arrows
that you might have seen in one
of the press releases,” Dorigo
Jones said.
Oey said the new satellite is
able to detect the motions of
stars in a smaller companion
galaxy of the Milky Way around
150,000 light years away. The
new technology, she explained,
will shed a new light on the
studies of the Milky Way and
other galaxies.
“I think this new telescope,
in particular, is something that
has really revolutionized our
view of our own galaxy and in
nearby galaxies because we can
really see the stars as objects
that are in motion now,” Oey
said.
During her research, Oey
said her team noticed how one
section of a satellite galaxy was
moving in the same direction
and wanted to consult
outside help to investigate
the astronomical finding.
“We were like ‘Woah,
what is that?’” Oey said.
“When all of those stars in
one section of the galaxy
are moving together in
one direction, so that’s
when we got in touch
with this professor at the
University
of
Arizona,
Gurtina Besla.”
Besla is an associate
professor
in
the
Department of Astronomy
and Steward Observatory
at
the
University
of
Arizona,
focusing
on
theoretical
astrophysics
and
galaxy
formation.
In
conjunction
with
Oey, Besla modeled the
interaction between the
two satellite galaxies.
“She’s
modeled
the
interaction of these two
galaxies
and
she
had
predicted back in 2012
that the two Magellanic
clouds
galaxies
should
have collided with each
other,” Oey said.
Oey said if these two galaxies
had a direct collision, then the
smaller Magellanic cloud stars
would be gravitationally drawn
to the large Magellanic cloud —
this is what the research team
observed.
“So these observations are
actually confirming her theory,
her prediction, that these two
galaxies have had a direct
collision,” Oey said. “We were
originally interested in looking
for the runaway stars but this
was just something that we
happened to see and it was a
very very cool result.”
LSA freshman Max Resnick
said though he doesn’t know
much about astronomy, he finds
the research fascinating and
ground-breaking.
“Though it might not directly
affect us that two galaxies
collided hundreds of millions of
lightyears away, it’s still really
cool to think about something
that grand and happening in
our universe,” Resnick said.
Jones said he was excited
by the confirmation of some of
Professor Besla’s predictions by
kinematic evidence from the
Gaia telescope.
“It’s
always
cool
when
the simulations and actual
observations
can
line
up,”
Dorigo Jones said. “It’s really
cool that we were able to use this
data from the new very accurate
telescope Gaia to confirm some
of these predictions.”
According to Resnick, new
discoveries can be beneficial to
many, not just astronomers.
“I would say there are some
things in any science which
can be applied to other sciences
that might be more directly
impactful to our lives,” Resnick
said.
APPLE HILL STRING QUARTET
THIS WEEK IN HISTORY: STUDENTS DISCUSS MENTALITY BEHIND REVEALING HALLOWEEN
COSTUMES
October 28, 2011
By Alexandra Mundalen
This weekend, hoards of
students will roam the streets
of
Ann
Arbor
dressed
as
celebrities, witches, animals
and pop-culture references,
while
wearing
costumes
comprised
of
tight
and
revealing clothing.
Emily
Richard,
shift
manager at American Apparel
on East Liberty Street, said
the store fills with shoppers
searching
for
the
perfect
costume in the week leading
up to Halloween — the store’s
busiest time of the year. Though
American Apparel doesn’t offer
packaged costumes, she said it
sells enough metallic spandex
and lacy leotards to meet the
demand of students trying
to complete their collegiate
Halloween ensemble.
Richard said she thinks
female
students
often
opt
for more revealing costumes
because of media influence.
“I think it’s kind of easy to go
the slutty route because that’s
how Halloween is marketed
towards girls,” she said.
LSA freshman Abby Lyng
and
Engineering
freshman
Jillian Jackson said having
the perfect costume is a one-
way ticket to the best parties,
as students often compete for
recognition for the time and
money spent on their costumes.
Lyng
said
she
dislikes
dressing
up
in
revealing
costumes in the cold weather,
but said that for her and many
of her peers, practicality and
sensibility are forfeited on
Halloween weekend.
LSA
sophomore
Paige
Lester, a member of F-Word
— a feminist activist group
on campus — said at the
organization’s
meeting
last
night that she thinks females
on
campus
should
be
entitled
to
wear
whatever
they please on the holiday. to
im “I think that girls should
be able to wear whatever they
want on Halloween,” Lester
said.
Catherine
Berlucchi,
attendingmanager of Allure
Boutique
on
East
Liberty
Street, said the items that
transform a run-of-the-mill
cat costume into a sex kitten
are still in high demand. The
store sells garter belts and
fishnet tights to the demand
of students specifically before
Halloween. LSA sophomore
Gia Tame, another member
of F-Word, said women often
dress to impress their male
peers, but questions if the
same is true for men. “Girls are
usually dressing for the guys
because that’s what
think that they have to do,”
mone said. “But are they
dressing for the girls?”
LSA senior Matt Mortellaro
said he thinks students often
dress up on Halloween with the
intention of impressing others
than for their own enjoyment.
“I reject the idea that we
dress strictly for ourselves,”
Mortellaro said. “I’m not sure
that’s possible.” Though there
might be a mentality among
female
students
that
men
prefer scantily dressed women
on
Halloween,
some
male
students believed the contrary.
LSA freshmen Scott Marlatt
and Benjamin Schmutzer said
they would rather approach a
girl dressed in a creative and
unique costume at a party,
rather than a girl dressed
provocatively. “I think that it’s
wrong,” Marlatt said. “A lot
of girls are pressured into it
because it’s what every other
girl does ... the nurse costume,
the sailor - all those things are
overplayed.”
2A — Wednesday, October 31, 2018
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HALLOWEEN!!!!
puzzle by sudokusyndication.com
Research team confirms predictions
on small galaxy collision modeling
Astronomy professor makes discoveries of star movements with new satellite
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