In a laboratory, the Balmer-beta spectral line of hydrogen has a wavelength of 486.1 nm. If the line appears in a star's spectrum at 486.7 nm, what is the star's radial velocity (in km/s)? (Enter the magnitude.) km/s

In a laboratory, the Balmer-beta spectral line of hydrogen has a wavelength of 486.1 nm. If the line appears in a star's spectrum at 486.7 nm, what is the star's radial velocity (in km/s)? (Enter the magnitude.) km/s

Stars and Galaxies (MindTap Course List)

10th Edition

ISBN:9781337399944

Author:Michael A. Seeds

Publisher:Michael A. Seeds

Chapter7: Atoms And Spectra

Section: Chapter Questions

Problem 10P

See similar textbooks

Related questions

Q: A star has a parallax angle of 0.0270 arcseconds and an apparent magnitude of 4.641. What is the…

A: a. A star has a parallax angle of 0.0270 arcseconds and an apparent magnitude of 4.641. What is the…

Q: Hertzsprung-Russell Diagram Blue or blue white White Yellow Red orange Red Superglants beleignne…

A: In this problem, it is asking about the brightest star.

Q: A star is observed with a surface temperature of 3,000 K and a luminosity of 100,000 solar…

A: Given , Temperature = 3000 K Solar Luminosity = 100,000 Now , mass and luminosity are related by…

Q: A group of graduate students, bored during a cloudy night at a the observatory, begin to make bets…

Q: Hertzsprung-Russell Diagram Bhe or bhue white White Vellow Red orange Red ORigel Superglants…

Q: Each choice below lists a spectral type and luminosity class for a star. Which one is a hot main…

A: Luminosity of main sequence star is class V and spectral type of hot main sequence star is O.

Q: Plaskett's binary system consists of two stars that revolve in a circular orbit about a center of…

Q: Star B is located 2.6 times farther from earth than Star A, but both have the same apparent visual…

Q: A white dwarf star has a visual luminosity of 0.046LSun. If you were 1 AU from the white dwarf, what…

A: Ldwarf = 0.046Lsun Distance d = 1 AU = 1.496×1011 m Lsun = 3.827×1026 W

Q: What characterizes a star of spectral-type A in the visible part of the spectrum? Strong lines…

A: Spectral type A has wavelength ranging from 290-390 nm. They have very strong hydrogen lines.

Q: If Vega is apparent magnitude zero, and Deneb first magnitude, then Vega must be 2.5× hotter…

Q: Considering absolute magnitude M, apparent magnitude m, and distance d. Compute the unknown for each…

A: Given: Considering absolute magnitude M, apparent magnitude m, and distance d To determine: a.M if…

Q: The apparent visual magnitude of star (Rigel) is 0.12. Use the method of spectroscopic parallax to…

A: The distance to the star is given by, d=10m-M+55 Here, d is the distance in parsecs, m is the…

Q: the parallax angle of a star to be 0.002 arc-seconds. what would the distance be to this star?

A: Given, Parallax angle, p=0.002 arc-seconds

Q: Which main-sequence star would be the least luminous? a. A b. B c. F d. G e. K

A: Answer:) option(a) A alpha century A is least luminous because its absolute magnitude (+4.4) which…

Q: Suppose a star has a luminosity of 7.0x1026 watts and an apparent brightness of 4.0×10-12 watt/m?.…

A: Luminosity of star (L) = 7×1026 watt Apparent brightness (AB) = 4×10-12 Wm2

Q: Which star is brighter as seen from the Earth? (you only have one try for this problem) A) A star…

Q: A star has a parallax angle of 0.0270 arcseconds and an apparent magnitude of 4.641. What is the…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Plaskett's binary system consists of two stars that revolve in a circular orbit about a center of…

A: v = 200 kmsT = 11.5 days Let the radius of orbital path followed = R

Q: A star has an apparent magnitude of 10.0 and an absolute magnitude of 2.5. How far away is it?

Q: Two stars have the difference between their apparent magnitudes +5, so their apparent luminosity…

A: The difference between the apparent magnitude is given as m1-m2=+5

Q: If two stars, star A and star B, have equal radii, but star A is ten times more luminous than star…

A: The luminosity of a star is related to the the surface area and temperature as follows L α AT4 Let…

Q: Which star is brighter as seen from the Earth? (you only have one try for this problem) A) A star…

A: Answer :- The dog star or sirius A is the brightest star in Earth's night sky. (A) The magnitude…

Q: Consider three main sequence stars: Star A is 12000 K, Star B is 6000 K, Star C is 3000 K. What are…

A: Given, Star A = 12000 K temprature Star B = 6000 K temprature Star C = 3000 K temprature So the…

Q: Which type of star would be the largest? a. M b. O c. B d. K e. A

Q: Polaris is an F7 star. Which of the following spectral types is slightly cooler than Polaris? A.…

Q: What the main differences that can occur between the life cycles of a Sun-sized star and a massive…

A: We have to mention the main differences that can occur between the life cycles of a Sun-sized star…

Q: From its spectral type, the surface temperature of a main sequence star is measured to be about…

A: Using the 1r2 rule method, we can find out the star's distance by measuring the intrinsic brightness…

Q: Which of the following Cepheid variable stars would appear to be the brightest from Earth? A Cepheid…

A: Answer : Luminosity : Luminosity is the rate at which star radiates…

Q: For each statement concerning main sequence stars, select T True, F False, G Greater than, L Less…

A: Required : True or False, greater, lesser, equal.

Q: If you find that the hydrogen alpha line in a star's spectrum occurs at a wavelength of 656.45 nm,…

Q: A certain star has a parallax of 0.647 arcseconds. How far away is it (in metres)? [Type in the…

A: Given : Parallax = 0.647 arcseconds

Q: You are trying to take an image of a particular star with apparent magnitude m=10, and need to…

A: Given: m=10 diameter=0.07 t=79 min

Q: Plaskett's binary system consists of two stars that revolve In a circular orbit about a center of…

A: Given : |v| = 240 km/s = 240 × 103 m/s T = 12.5 days = 1.08 × 106 seconds Msun = 1.99 × 1030 kg

Q: You measure a star to have a parallax angle of 0.12 arc-seconds What is the distance to this star in…

A: Write the given values of the problem- Parallax angle=0.12 arc-second

Q: Plaskett's binary system consists of two stars that revolve in a circular orbit about a center of…

A: Given : Masses of both stars are equal Orbital speed of each star |v|→ = 240 km/s…

Q: Which star is more luminous? (you only have one try for this problem) A) A star with absolute…

A: The absolute magnitude is a measure of the star's luminosity and it is defined as: Luminosity (L) =…

Q: Suppose a star has a luminosity of 7.0x1026 watts and an apparent brightness of 4.0x10-12 watt/m?.…

A: Given: The luminosity is 7x1026 W. The apparent brightness is 4x10-12 W/m2.

Q: nitude m = 3.6. What is the apparen

A: Given: To find the magnitude of the dimmer star is calculated shown as: m2 =3.6,b1b2 =12.4

Q: What is the parallax angle of a star that is 50 pc away? enter your answer in arc seconds

A: Given, distance, d = 50 pc We know that p = 1/d , where p is parralax angle in arc seconds and d is…

Q: Plaskett's binary system consists of two stars that revolve in a circular orbit about a center of…

A: While revolving, the centripetal force will be equal to the gravitational force. Here, G is the…

Q: The Balmer lines are strongest in which class of star? a. O b. B c. A d. K e. M

A: Balmer lines- it is one of a set of six named series describing the spectral line emissions of…

Q: The a star system contains two stars, one with apparent magnitude m = 10.5 and the other with m =…

Question

km/s

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

The star Sirius A has an apparent magnitude of 1.5 . Sirius A has a dim companion, Sirius B, which is 10,000 times less bright than Sirius A. What is the apparent magnitude of Sirius B? Can Sirius B be seen with the naked eye?
An astronomer is investigating a faint star that has recently been discovered in very sensitive surveys of the sky. The star has a magnitude of 16. How much less bright is it than Antares, a star with magnitude roughly equal to 1?
In the laboratory, the Balmer alpha line has a wavelength of 656.3 nm. If the line in a star’s spectrum appears at 655.8 nm, what is the star’s radial velocity? Is it approaching or receding? (c = 2.997 X 108 m/s)
The luminosity of a star is 6.6 x 1031 W and the peak wavelength in its spectrum is 4.6 x 10-7 m. Calculate the surface area of that star. Round off the answer to 2 decimal places with scientific representation.
The spectrum of a typical star shows absorption lines at different wavelengths than their laboratory values. If the observed wavelength is less than its laboratory value of 656.3 nm, one can conclude that... A. The separation between Earth and the star is decreasing. B. The separation between Earth and the star is increasing. C. The separation between Earth and the star is unchanging D. No conclusion is possible.
In a laboratory, the Balmer-beta spectral line of hydrogen has a wavelength of 486.1 nm . If the line appears in a star’s spectrum at 485.8 nm , what is the star’s radial velocity? Is it approaching or receding? Is this a blueshift or a redshift?
A star has a parallax angle of 0.0270 arcseconds and an apparent magnitude of 4.641. What is the distance to this star? [Answer in parsecs] 37 What is the absolute magnitude of this star? 1.8 Is this star more or less luminous than the Sun? Answer "M" for More luminous or "L" for Less luminous. (HINT: the absolute magnitude of the Sun is 4.8) M What is the luminosity of this star? (HINT: The luminosity of the Sun is 3.85×1026 W.)
15: A star has a parallax angle of 0.0270 arcseconds and an apparent magnitude of 4.641. What is the distance to this star? Answer: 37 16: What is the absolute magnitude of this star? Answer:1.8 17: Is this star more or less luminous than the Sun? Answer "M" for More luminous or "L" for Less luminous. (HINT: the absolute magnitude of the Sun is 4.8) Answer: M 18: What is the luminosity of this star? (HINT: The luminosity of the Sun is 3.85×1026 W.) Please answer question #18, #15-17 are correct, the photos provide the work for them.
A star is moving toward Earth with a radial velocity (speed directly toward or away from Earth) of 40,000 km/s. If we take a spectrum of this star’s light, will we find it to be red shifted or blue shifted? By what fraction are the wavelengths in this star’s spectrum shifted? [Answer: λ0/λ = 0.88]
The a star system contains two stars, one with apparent magnitude m = 10.5 and the other with m = 10.9. What is the combined apparent magnitude of the two stars?
What is the surface temperature of a star that emits at a peak wavelength of 400 non? 1nm=1x10(-9) m
A group of four stars, all the same size, have the four different surface temperatures given below. Which of these stars emits the most red light?A. 3000 K B. 4000 K C. 5000 K D. 6000 K