mma Flashcards

1
Q

which messanger is caused by which process?

A
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2
Q

name mma’s?

A

em, cosmic rays, neutrino, gw

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3
Q

give an overview of what learned in mma?

A

gw170817: gw signal (mass)
x-ray
gamma ray
kilonova

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4
Q

example of each mma source?

A

em, cosmic, neutrino (sun)
gw (gw170817 ns merger)

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5
Q

gw produced by?

A

bh + ns merger
or
nsb merger

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6
Q

what are NS? mass? inner structure? how are they supported against gravitational collapse?

A
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7
Q

why study NS/ BH?

A

extreme densities
GR & nuclear physics lab
heavy element formation

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8
Q

how can study NS?

A

gw (merger)
x rays (poles)

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9
Q

how to info from multiple sources combine?

A
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10
Q

how gw produced?

A

acc of masses– disturbance in space time

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11
Q

what do gw observations measure?

A

f,
amp,
location in sky (based on arrival time from diff detectors)

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12
Q

can symmetric objects (not distorted) make gravitational waves?

A
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13
Q

how can combination of detectors help localization of signal in the sky?

A
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14
Q

possible mechanism(s) for GRB emission?

A
  1. magnetar
  2. neutrino anhilation
  3. acc of particles along string mag field lines
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15
Q

possible mechanism(s) for x ray emission in gw170817?

A

fallback accretion

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16
Q

what is a kilonova?

A