Embedded Files
O'Raifeartaigh, Cormac & O'Keeffe, Michael & Nahm, Werner & Mitton,
Simon. (2017). One Hundred Years of the Cosmological Constant: from 'Superfluous Stunt' to Dark Energy. The European Physical Journal H. 43. 10.1140/epjh/e2017-80061-7.
Dark Energy
Dark Energy
Accelerating expansion of the universe.
Early universe Hubble constant vs late universe Hubble constant do not agree.
Type Ia as Standard Candles
Type Ia as Standard Candles
Intrinsic brightness of a type Ia supernova can be determined by measuring how it evolves through time. The shape of Ia supernova light curves, or the speed at which it fades away, is related to its intrinsic brightness.
Perlmutter, 2003
Swope Supernova Survey
Swope Supernova Survey
Image: [@carnegiescience]. (2017, October, 17). Twitter.
Swope Survey
Swope Survey
The Swope telescope, Las Campanas
Image: Forest & Kim Starr. (2013, May 15). Wikipedia.
Foundation Survey
Foundation Survey
The Foundation survey is a well-established, well-calibrated set of type Ia supernova data from the Pan-STARRS telescope.
Data Comparison
Data Comparison
Magnitude differences
Magnitude differences
Magnitude and Phase
Magnitude and Phase
Image Quality Checks
Image Quality Checks
2018bie image in the r-filter
2018bie image in r-filter with scale shifted. Vertical line visible.
LDS 749b before
LDS 749b after correction
LDS 749b before, with scale shifted.
LDS 749b after correction, with scale shifted.
Acceptable Images
Acceptable Images
2018bie in g-filter
2018bie in g-filter with scale shifted.
Page updated
Report abuse