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How well do we measure the radii of white dwarfs?

How well do we measure the radii of white dwarfs?

by Ingrid Pelisoli | Jul 17, 2017 | Daily Paper Summaries

The accuracy of our estimates of the radii of white dwarf stars has important implications to cosmology. We currently rely on a theoretical mass-radius relationship for that. Are we doing a good job?
Image credits: RJHall/Wikimedia Commons.

Citizen scientists in search of failed stars

Citizen scientists in search of failed stars

by Ingrid Pelisoli | May 29, 2017 | Daily Paper Summaries

Brown dwarfs are objects below the mass limit to become a star. It’s been less than 20 years since we’ve detected the first one. Can citizen science help us increase our numbers?
Image credits: R. Hurt/NASA

Why did (some) scientists march?

Why did (some) scientists march?

by Ingrid Pelisoli | Apr 28, 2017 | Current Events

Last Saturday many scientists and science enthusiasts went to the streets joining the March for Science. What are the reasons behind this movement?

One mechanism to rule all magnetic bodies

One mechanism to rule all magnetic bodies

by Ingrid Pelisoli | Mar 21, 2017 | Daily Paper Summaries

Many celestial bodies show magnetic fields, from the Earth to the faint white dwarf stars. Is there a common explanation for such fields?
Image credits: NASA/SDO/AIA/LMSAL

Can you tell a sibling from a doppelganger?

Can you tell a sibling from a doppelganger?

by Ingrid Pelisoli | Feb 8, 2017 | Daily Paper Summaries

Abundance analysis, or chemical tagging, is widely use to identify stars with a common birth. But is a similar abundance alone enough to identify siblings? Can’t stars have doppelgangers?

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