Astronomy Flashcards
A recent study of these objects showed that the “mountains” on their surfaces may only be a fraction of a millimeter tall
neutron stars
These objects are studied by a timing instrument consisting of 56 X-ray concentrators as part of the NICER program
neutron stars
The crust of these objects is predicted to contain a form of degenerate matter which would be the strongest material in the universe, known as nuclear pasta
neutron stars
Degeneracy pressure supports these objects, but they will collapse into black holes if they have more mass than the Tolman-Oppenheimer-Volkoff limit
neutron stars
One type of these bodies ceases to emit radiation at the so-called “death line”
neutron stars
A 2017 multi-messenger astronomy breakthrough involved measuring both gravitational waves and a gamma-ray burst from the merger of two of these bodies, known as a kilonova
neutron stars
Stars whose mass is just above the Chandrasekar limit form one of these bodies after a supernova instead of a white dwarf
neutron stars
The alpha star in this constellation is part of the Winter Triangle along with Sirius and Procyon [PROH-see-on]
Orion
While surveying an object with this name, the Becklin–Neugebauer Object was discovered
Orion
That object with this name is number 42 in the Messier Catalog and is the closest region of massive star formation to Earth
Orion
The molecular cloud complex with this name contains Barnard’s Loop
Orion
Alnitak, Alnilam, and Mintaka form a recognizable asterism in a constellation with this name
Orion
The radiant of a meteor show in October that is created by Halley’s Comet is in this constellation, whose alpha star is actually the second brightest in the constellation
Orion
A complex named for this figure contains the Kleinmann-Low nebula in addition to a bright infrared source called the Becklin-Neugebauer object
Orion
With a name meaning “left foot” in Arabic, For 10 points, name this blue-white supergiant, the Beta star to Betelgeuse in the constellation Orion
Rigel
M43, also known as De Mairan’s Nebula, is found in this constellation, along with the Flame Nebula, the Horsehead Nebula, and this constellation’s namesake nebula
Orion
Its namesake “cloud” contains objects such as Barnard’s Loop, the Rosette Nebula, and Messier objects 42 and 43
Orion
The size of this feature’s uniformities is determined by the extent of Silk damping
CMBR
This feature’s polarization is divided into E- and B-modes
CMBR
The BOOMERanG and MAXIMA experiments both imaged this feature with a balloon at an altitude of 40 kilometers
CMBR
The Sachs–Wolfe effect induces anisotropies (“an-eye-SAW-truh-peez”) in this feature from gravitational redshift at the surface of last scattering
CMBR
A void in the constellation Eridanus is an explanation of a “cold spot” in this feature that was observed by the COBE (“KO-bee”) and Planck satellites
CMBR
Arno Penzias and Robert Wilson discovered this feature after making sure it wasn’t interference from bird poop on their antenna
CMBR
This phenomenon’s spectrum was observed to be identical to a blackbody by the COBE (“KOH-bee”) telescope
CMBR
This phenomenon first became visible at the surface of last scattering, which formed due to the recombination of nuclei and electrons
CMBR
Diffusion damping of this phenomenon occurs on the Silk scale which can be used as a standard ruler along with baryonic acoustic oscillations
CMBR
Diffusion damping of this phenomenon occurs on the Silk scale which can be used as a standard ruler along with baryonic acoustic oscillations
CMBR
