Why do astronomers think there is not great amount of mass in the halo of the milky way?

Why do astronomers think there is not great amount of mass in the halo of the milky way?
by

1 Answer

Answer :

Need answer
by
selected by

Related questions

Has the quantity of stellar mass of the Milky Way changed much since its formation? -Space

Description : Has the quantity of stellar mass of the Milky Way changed much since its formation? -Space

Last Answer : In March 2019, astronomers reported that the mass of the Milky Way galaxy is 1.5 trillion solar masses within a radius of about 129,000 light-years, over twice as much as was determined in earlier studies, and suggesting that about 90% of the mass of the galaxy is dark matter.

What do you think when astronomers mean when they use the term observable universe?

Description : What do you think when astronomers mean when they use the term observable universe?

Last Answer : It means that anything beyond a certain distance (currentlyabout 46 billion light-years away) can't be observed by us, evenwith the best instruments, because any signal (light, gravitationalwaves, etc. ... larger than theobservable Universe. It may or may not be infinite; we don'tcurrently know.

Which blockbuster title do you think will be better: Halo: Reach vs Call of Duty: Black Ops?

Description : Which blockbuster title do you think will be better: Halo: Reach vs Call of Duty: Black Ops?

Last Answer : answer:Game movies? Sci-fi beats war imo.

How come it appears when astronomers talk of life on other planets they seem to use Earth as the only template?

Description : How come it appears when astronomers talk of life on other planets they seem to use Earth as the only template?

Last Answer : answer: What makes astronomers believe life out there has to adhere to the perimeters of here, being Earth? Nothing. In fact, many people have hypothesized just that. However, we ... asphalt. The study of these extremophiles may inform the search for extraterrestrial microorganisms, as well.

Do astronomers have to memorize every point of light in the sky?

Description : Do astronomers have to memorize every point of light in the sky?

Last Answer : No. There are too many. I’m not an astronomer, but Hubby is. I have read some articles in his magazines that mention them by numbers or some such. Maybe those are only known by their locations in the sky. . But they do know the locations and names of many as well.

How many dwarf planets have astronomers discovered ?

Description : How many dwarf planets have astronomers discovered ?

Last Answer : Astronomers have discovered 5 dwarf planets.

Why do astronomers have to move their telescopes when observing thr stars?

Description : Why do astronomers have to move their telescopes when observing thr stars?

Last Answer : Need answer

Why do astronomers conclude that none of the Jovian planets rings can be left over from the formation of the planets?

Description : Why do astronomers conclude that none of the Jovian planets rings can be left over from the formation of the planets?

Last Answer : I understand that they have calculated that such a ring wouldnot be stable in the long term. It might last a few hundred millionyears, at most, if I remember correctly.

What group in Egyptian society served as astronomers?

Description : What group in Egyptian society served as astronomers?

Last Answer : Need answer

What wavelengths can astronomers detect from earth?

Description : What wavelengths can astronomers detect from earth?

Last Answer : Only those which aren't absorbed too much by the atmosphere.Those are visible light, and radio waves.

What planet did astronomers predict its existence by observing the effects of gravity?

Description : What planet did astronomers predict its existence by observing the effects of gravity?

Last Answer : Neptune was predicted by astronomers be observing the effects ofits gravity. Neptune was discovered in 1846 by Johann GottfriedGalle.

Is it true that in the late 1500s Ptolemy's observations were supplanted by those of later Greek astronomers?

Description : Is it true that in the late 1500s Ptolemy's observations were supplanted by those of later Greek astronomers?

Last Answer : Later polish astronomers

What are some famous astronomer's?

Description : What are some famous astronomer's?

Last Answer : People who made important contributions to our knowledge ofAstronomy include Kepler, Galileo, Bruno (Giordano Bruno),Einstein, Lemaitre, Zwicky, Hubble... And a host of others. You canfind many more names, for instance, if you check the Wikipediaarticle on "History of astronomy".

What tools do Astronomers use to gather evidence in support of the Big Bang Theory?

Description : What tools do Astronomers use to gather evidence in support of the Big Bang Theory?

Last Answer : Feel Free to Answer

Why do astronomers use frequencies when investigating the universe?

Description : Why do astronomers use frequencies when investigating the universe?

Last Answer : It is because stars and other cosmic objects, radiate energyacross the whole of the electromagnetic spectrum.

What evidence do astronomers have that there is dark matter in the universe?

Description : What evidence do astronomers have that there is dark matter in the universe?

Last Answer : What is the answer ?

Why do astronomer's believe they can learn about early earth by studying comets?

Description : Why do astronomer's believe they can learn about early earth by studying comets?

Last Answer : Because comets were created about the same time as theEarth.

Why do astronomers use frequencies when investigating the universe?

Description : Why do astronomers use frequencies when investigating the universe?

Last Answer : It is because stars and other cosmic objects, radiate energyacross the whole of the electromagnetic spectrum.

Is astronomers a common noun?

Description : Is astronomers a common noun?

Last Answer : Yes, the noun 'astronomer' is a common noun, a general word for someone who studies the universe and the objects in it.

Can radio astronomers collect data only after dark?

Description : Can radio astronomers collect data only after dark?

Last Answer : No, they can collect data during the day, as well.

How did astronomers know that the sun rotates?

Description : How did astronomers know that the sun rotates?

Last Answer : The easiest way to see this is by observing sunspots.The Doppler effect can also be used - i.e., checking the Doppler effect from the radiation of individual parts of the Sun's surface.

How many constellations are recognized by astronomers today?

Description : How many constellations are recognized by astronomers today?

Last Answer : There are 88 constellations recognized by astronomers right now.

Why do astronomers find it difficult to locate extrasolar planets with telescope?

Description : Why do astronomers find it difficult to locate extrasolar planets with telescope?

Last Answer : light from the they orbit makes it difficult to locate extrasolar planets with telescope

Why do astronomers find it difficult to locate extrasolar planets with telescope?

Description : Why do astronomers find it difficult to locate extrasolar planets with telescope?

Last Answer : light from the they orbit makes it difficult to locate extrasolar planets with telescope

SN 1054 is a supernova that was first observed in 1054 AD by Chinese, Arab and Japanese astronomers. It was visible in ordinary light for 23 days and for around two years in the night-sky. What is its famous remnant that has a pulsar at its centre and expands at the rate of 1500 km per second?

Description : SN 1054 is a supernova that was first observed in 1054 AD by Chinese, Arab and Japanese astronomers. It was visible in ordinary light for 23 days and for around two years in the night-sky. What is its famous remnant that has a pulsar at its centre and expands at the rate of 1500 km per second?

Last Answer : Crab Nebula.

6. The Theory of Panspermia is still a favourite idea for some astronomers which states that a) Life could have come from pre-existing Life b) Life started from chemicals c) Units of life called spores were transferred to different planets d) Life came out of decaying & rotting matter

Description : 6. The Theory of Panspermia is still a favourite idea for some astronomers which states that a) Life could have come from pre-existing Life b) Life started from chemicals c) Units of life called spores were transferred to different planets d) Life came out of decaying & rotting matter

Last Answer : c) Units of life called spores were transferred to different planets

What is dark matter halo?

Description : What is dark matter halo?

Last Answer : A dark matter halo is a theoretical structure surrounding a galaxy or other astronomical object, consisting of a large amount of dark matter and thought to contribute significantly to the gravitational lensing observed around such objects.

Whats with the obsession over "Halo Reach"?

Description : Whats with the obsession over "Halo Reach"?

Last Answer : answer:Its an amazing FPS game with a great multi-player and Bungies last hoorah with the Halo series. For a user name such as Gamrz360 one would think you would at least be familiar with Halo’s legacy.

Why isnt my copy of Halo Reach working? please help?

Description : Why isnt my copy of Halo Reach working? please help?

Last Answer : Still got the receipt? Take it back!

Should one wait for Halo (multi-platform) or instead get Xbox 360 Halo Reach ''bundle''?

Description : Should one wait for Halo (multi-platform) or instead get Xbox 360 Halo Reach ''bundle''?

Last Answer : I plan on playing it cool for a about 5 years.

Halo or Call Of Duty?

Description : Halo or Call Of Duty?

Last Answer : I personally prefer the Halo series over Call of Duty any day, but thats just me. i wanna hear your opinions

What's the name of the 4 beeps you hear before you start a game in Halo?

Description : What's the name of the 4 beeps you hear before you start a game in Halo?

Last Answer : There is two beeps in Halo, one is for a trip mine & the one you are talking about, not sure if it has a term for Halo use, but I know it as a respawn countdown timer.

What have you done for me lately? How long does the halo effect last?

Description : What have you done for me lately? How long does the halo effect last?

Last Answer : The people that count remember me. ;)

Why does everybody love Halo?

Description : Why does everybody love Halo?

Last Answer : Probably because of the near perfect online features, Halo 2 notably. Just a guess. Never played those.

Will there be a halo 4?

Description : Will there be a halo 4?

Last Answer : Eventually. As time tends to infinity, the number Halo games tends to infinity.

How to get the iwhbyd skull in halo 3?

Description : How to get the iwhbyd skull in halo 3?

Last Answer : Scalp it?

Are there any superjumps in halo 3?

Description : Are there any superjumps in halo 3?

Last Answer : If there ever were, I’m sure they’ve been fixed after 2½ years. To answer your question, no, I don’t there are.

How to overload the map sandtrap on halo 3?

Description : How to overload the map sandtrap on halo 3?

Last Answer : sorry, i ment to say how do you use mines to overload the maps on halo 3

How do I get a shotgun in Halo 3 for Xbox 360?

Description : How do I get a shotgun in Halo 3 for Xbox 360?

Last Answer : Well there isn't an in-game code but you might be able to download software to do it but I am not sure. Well the only way you can get the shotgun without hacking or cheating is by having ... starts which only happens in custom games or by finding it lying around on the ground like any other gun.

Is Halo 3: ODST as good as you thought it was gonna be?

Description : Is Halo 3: ODST as good as you thought it was gonna be?

Last Answer : Haven’t played it yet, is it as good as you thought it was gonna be?

Help with Halo CE multiplayer, please?

Description : Help with Halo CE multiplayer, please?

Last Answer : Custom Edition? Your second sentence didn’t make any sense.

I have a mole that turned black w- a red halo around it. How concerned should i be?

Description : I have a mole that turned black w- a red halo around it. How concerned should i be?

Last Answer : Some info on Malignant vs. Benign Moles: http://www.skinmd.com/images/Malignant_Melanoma.jpg

Should i buy Halo 3 or Halo 2?

Description : Should i buy Halo 3 or Halo 2?

Last Answer : Do you have an Xbox 360 or an Xbox? Have you played the first one, Halo: Combat Evolved before? Give us something to work with!

How do I get Halo 3 maps to play on Xbox Live?

Description : How do I get Halo 3 maps to play on Xbox Live?

Last Answer : The exact message is: “One or more players do not have the maps required to play in this playlist”

Should I get Call Of Duty 4 or Halo 3?

Description : Should I get Call Of Duty 4 or Halo 3?

Last Answer : I’ve heard better things about Call Of Duty and that Halo is just more of the same.

Halo 3 for Vista?

Description : Halo 3 for Vista?

Last Answer : Most likely in time.

Why is Halo 3 so ADDICTING??

Description : Why is Halo 3 so ADDICTING??

Last Answer : answer:The game is not the addictive one. Addictiveness is a personality trait. This opinion was brought to you by Squirbel Inc.

Which is better, Halo 3 or Call of Duty 4?

Description : Which is better, Halo 3 or Call of Duty 4?

Last Answer : they boath have there strong points halo has great wepons and the story line is fanominal yet COD4 is what war is now and it is extreamly realistic so my vote goes twards COD4 but not by mutch

Can someone help me beat halo 3 on legrndary on xbox live

Description : Can someone help me beat halo 3 on legrndary on xbox live

Last Answer : I’ll bet you can get tons of help at IGN.com

Is there gonna be a Halo 4?

Description : Is there gonna be a Halo 4?

Last Answer : answer:so really the only people who would know the answer work for Bungie. If they haven't anounced it yet then you are unlikely to get an answer here unless there is someone at bungie who's tired ... industry again. And what's wrong with opinion. I thought that was the whole point of Ask-public.