A Type Ia supernova is observed and achieves an apparent magnitude of m = 19.89 at peak brightness. The absolute magnitudes of Type Ia supernovae at peak brightness are known to be M=−19. Determine the distance to the supernovae in units of Mpc.
Q: A red giant star might have radius = 104 times the solar radius, and luminosity = 1730 times solar…
A: This problem can be solved using Stefan-Boltzmann law of Black body radiation.
Q: Supernova A is farther away than supernova B. The brightness of supernova A will be ________ than…
A: The brightness of supernova and its distance from the observer are related as
Q: Which of the following is least reasonable regarding novae and supernovae? Group of answer choices…
A:
Q: A star has a temperature T = 15000K, mass M = 0.25M⊙ and luminosity L = 0.02L⊙. Sketch the position…
A:
Q: If an X-ray binary consists of a 17-solar-mass star and a neutron star orbiting each other every…
A: The expression for the Kepler’s third law is as follows: MA+MB=a3p2 1
Q: As a white dwarf cools, its radius will not change because a. pressure resulting from nuclear…
A: White dwarf is one of forms of a star in its life span. Whenever a star exhaust of its fuel, it…
Q: Determine the mean molecular mass of a star for both the scenario of being completely neutral and…
A:
Q: Two stars are in a closely orbiting binary system. The smaller star (a K-type main sequence star)…
A: The correct option. Following the mass transfer, which of the following is now true of the main…
Q: As we have discussed, Sirius B in the Sirius binary system is a white dwarf with MB ∼ 1M , LB ∼…
A: Given that: The mass of Sirius B: MB ~ 1MThe luminosity of Sirius B: LB ~ 0.024LThe radius of Sirius…
Q: Consider a star of mass M=10 solar masses, composed entirely of fully ionized 12C. Its core…
A:
Q: An astronomical image shows two objects that have the same apparent magnitude, i.e., the same…
A: Let the luminosity of the star is Ls= LoLuminosity of Milky Way galaxy, Lm=1011LoLuminosity of…
Q: Neutrinos are experimentally determined to have an extremely small mass. Huge numbers of neutrinos…
A: A neutrino may be a sub-atomic particle, which is emitted during the decay. It can uncharged…
Q: fill in missing word a) One difference between a type I and type II supernova is the formation of…
A: Few sentences are given and we need to fill in the blanks.
Q: An M dwarf star of mass 0.1 solar masses, a radius of 0.13 solar radii and a photospheric…
A: Mass of M dwarf star, m = 0.1x solar mass M Radius of M dwarf star, r= 0.13 solar radii R The…
Q: Question A1 a) The Large Magellanic Cloud (LMC) is a galaxy in the vicinity of the Milky Way. It is…
A: Solution/Calculation: a) The Large Magellanic Cloud (LMC) is a galaxy in the vicinity of the Milky…
Q: The apparent magnitude of a star is observed to vary between m = +0.4 and m = +0.1 because the star…
A: Given: The apparent magnitude of the star varies between m+ = 0.4 and m- = 0.1 The radius of the…
Q: Find the wavelength of peak intensity for a hot 45000 K star that emits thermal radiation.
A: Given in question that Temperature of the object(T) = 45000 K.
Q: Observations show that stellar luminosity, L, and mass, M, are related by Lx M3.5 for main sequence…
A:
Q: 24 If the Temperature of the core of a supernova is 3200 x 1023 K, what should be the average…
A: Step 1:Step 2:
Q: An O8 V star has an apparent magnitude of +2. Use the method of spectroscopic parallax to estimate…
A: The apparent magnitude m of the star is given to be m=+1. From HR absolute magnitude M of a star…
Q: If the expanding layers of a supernova move at a constant velocity of v = 10, 000 %3D km/s and the…
A: Given: velocity of supernova v=104 km/s mass of the supernova M=2.4×1031 kg Ephoton=mc2 Time taken…
Q: V603 Aquilae was a nova outburst that occurred on June 8, 1918, at which time it attained a peak…
A: Given information: The apparent magnitude of the (m) = -0.5 The apparent angular diameter of shell…
Q: is observed to have a period of 10 yr. The radial velocities of the two stars are determined to v1r…
A: Concept used : Two stars orbiting around each other form a binary star system Given data:-*Time…
Q: I 19 14: = 24.88 mas y-¹ lota Psc has a magnitude of proper motion of 2 = (Ha*)² + (Hg) ² =…
A: GivenWhat is the magnitude of proper motion for lota psclota Piscium is single, F-type main…
Q: A G0 III star with a mass of about 1 M⊙ sits on the horizontal branch. Horizontal branch stars are…
A: Given information: The mass of the star (M) = 1 M⊙ The luminosity of the star (L) = 100 L⊙ The…
Q: When two stars are in the same star system, they can affect each other’s evolution. Two stars in the…
A: Two stars in the same system might evolve at a different pace, depending on their distances in the…
Q: In a Type Ia supernova, the cause of the violent outburst is: 1) the sudden emission of a shell…
A: A supernova is the explosion of a star that happens during the final evolutionary stages of a…
Q: What is the free-fall time of a 10 MSun main-sequence star? O 100 hours 10 hours O 1 hour O 0.1…
A: The problem is based upon free fall of a star. Here the given star is having the mass 10 times the…
Q: The present-day density of the sun is about 1.4 g/cm3. The volume of a sphere is 4/3πr3. The density…
A: Given:ρsun=1.4g/cm3ρstar=ρsunxRsunRstar3volume of sphere =4/3πr3to find:ρsun when Rsun=50 times…
Q: Consider an M-dwarf star of mass 0.1M⊙ and luminosity 10−3L⊙. When the star joins the main sequence…
A: Luminosity of the star is defined as the power emitted by the star. Power is simply the energy…
Q: Let's compare the acceleration due to gravity at the surface of a Sun-like star to a white dwarf of…
A:
Q: A Type la supernova is observed and achieves an apparent magnitude of m 19.89 at peak brightness.…
A: Given Apparent magnitude, m=19.89 Absolute magnitude, M=-19 We know, m-M=5log(d10) where d is the…
Q: The exponential drop in the brightness of supernova 1987A was due to the decay of 56Ni (t1/2 = 6.1…
A: Given: The reaction of decay is given as, Ni56t1/2=6.1 days→Co56t1/2=77.1 days→Fe56
Q: What is the difference between type I and type II supernovae
A: To determine Difference between type I and type II supernovae
Q: An object was discovered on Feb. 24.37 UT (position R.A. = 5h35m.8, Decl. = -69 18'), obtained m =…
A: Absolute magnitude and apparent magnitude of any stellar object are related as M=m-2.5logd102M is…
Q: The mass-luminosity relation describes the mathematical relationship between luminosity and mass for…
A: Given,mass =4M⊙ Note: We’ll answer the first question since the exact one wasn’t specified. Please…
Q: The flux received at the Earth from Supernova 1885 was 3.0182 x 10 10 W/m?. The luminosity of the…
A: flux (I) = 3.0182×10-10 Wm2luminosity = 6×109 solar luminosities
Q: This star has a mass of 3.3 MSun. What is the main sequence lifetime of this star? You may assume…
A: The main sequence lifetime is given as:t α1M2.5it is given star has mass of 3.3 MSunSo,…
Q: One way to calculate the radius of a star is to use its luminosity and temperature and assume that…
A:
Q: During the collapse of a supernova explosion, calculate the change in gravitational potential hergy…
A: During explosion of supernova, the gravitational potential energy of the core is lost, hence the…
Q: A supernova remnant is now 3.85 pc in radius and is expanding at 3,350 km/s. Approximately how many…
A:
Q: For the PP chain 0.7% of the mass participating in nuclear fusion is liberated as energy which…
A:
A Type Ia supernova is observed and achieves an apparent magnitude of m = 19.89 at peak brightness. The absolute magnitudes of Type Ia supernovae at peak brightness are known to be M=−19. Determine the distance to the supernovae in units of Mpc.
Step by step
Solved in 3 steps