Mysterious ripples in the Milky Way were caused by a passing dwarf galaxy
Wiki Article
Mysterious ripples in the Milky Way were caused by a passing dwarf galaxy
Using data from the Gaia space telescope, a team led by researchers at Lund University in Sweden has shown that large parts of the Milky Way's outer disk vibrate. The ripples are caused by a dwarf galaxy, now seen in the constellation Sagittarius, that shook our galaxy as it passed by hundreds of millions of years ago.
Our cosmic home, the Milky Way, contains between 100 and 400 billion stars. Astronomers believe that the galaxy was born 13.6 billion years ago, emerging from a rotating cloud of gas composed of hydrogen and helium. Over billions of years, the gas then collected in a rotating disk where the stars, such as our sun, were formed.
In a new study published in Monthly Notices of the Royal Astronomical Society, the research team presents their findings about the stars in the outer regions of the galactic disk.
"We can see that these stars wobble and move up and down at different speeds. When the dwarf galaxy Sagittarius passed the Milky Way, it created wave motions in our galaxy, a little bit like when a stone is dropped into a pond," Paul McMillan, the astronomy researcher at Lund Observatory who led the study, explains.
SOURCE:
abcinternetu.blogspot.com
bloguwaga.blogspot.com
dobry7.blogspot.com
godzinnik.blogspot.com
infopolonline.blogspot.com
kopmoc.blogspot.com
newsikowy.blogspot.com
piszpl.blogspot.com
polskaiswiattutaj.blogspot.com
wypocinyna5.blogspot.com
24okej.blogspot.com
abradab.blogspot.com
artykul365.blogspot.com
blog-365-online.blogspot.com
mojnius.blogspot.com
newsy365.blogspot.com
panstwaimiasta.blogspot.com
redakcjapol.blogspot.com
stanislawonline.blogspot.com
ziemianasza.blogspot.com
co-za-dzien.blogspot.com
dziendobrydzien.blogspot.com
globalnytemat.blogspot.com
naszezycienaziemi.blogspot.com
piotrnaczelny.blogspot.com
planeta-24.blogspot.com
publicznetematy.blogspot.com
publikator24.blogspot.com
sosna46.blogspot.com
wiesciwsieci.blogspot.com
portalisko.blogspot.com
portalicho.blogspot.com
wydarzeniainfo.blogspot.com
panplociuch.blogspot.com
halloziemia.blogspot.com
izielonka.blogspot.com
imbiroz.blogspot.com
ipolska.blogspot.com
bloginstars.blogspot.com
zouzaz.blogspot.com
wywiadyinewsy.blogspot.com
aktualizowany.blogspot.com
swiat-na-blogu.blogspot.com
codziennikinternetowy.blogspot.com
donaldpisze.blogspot.com
serniczkowa.blogspot.com
nowiny-24.blogspot.com
blogosferyczny.blogspot.com
posty-24.blogspot.com
witaj-polsko.blogspot.com
medalowy.blogspot.com
ala-pisze.blogspot.com
cosiedzieje24.blogspot.com
kosmicznypisarz.blogspot.com
jakubinfo.blogspot.com
wikiwilk.blogspot.com
maniakael.blogspot.com
rado-sny.blogspot.com
do-brzegu.blogspot.com
oknonablog.blogspot.com
top100wiadomosci.blogspot.com
na-dobre-i-na-zle-info.blogspot.com
po-prostu-krzysiek.blogspot.com
nowy-blog-24.blogspot.com
gwiazdorsky.blogspot.com
blogmisja.blogspot.com
krewetka75.blogspot.com
na-planecie.blogspot.com
mojestery.blogspot.com
nigdyoffline.blogspot.com
kamikazenews24.blogspot.com
swiatoczamibloga.blogspot.com
ptak-ktory-pisze.blogspot.com
mediaroom24.blogspot.com
wojownik-specjalny.blogspot.com
zegartyka24.blogspot.com
sygnaliczny.blogspot.com
fifirudolf.blogspot.com
bodziohuligan.blogspot.com
wiewiora24.blogspot.com
pieknookilizak.blogspot.com
sopockadusza.blogspot.com
wiktor-w-sieci.blogspot.com
na-klawiaturze.blogspot.com
pomaranczka7.blogspot.com
blogxline.blogspot.com
ferdek-kiepski.blogspot.com
noweznalem.blogspot.com
niebo-i-pieklo-swiat.blogspot.com
blogerskowy.blogspot.com
szaraszarancza.blogspot.com
jedziemyna.blogspot.com
24godzinnyblog.blogspot.com
global1983.blogspot.com
grupapisarska.blogspot.com
fajnatapolska.blogspot.com
stylowe-miejsce.blogspot.com
bolekznorek.blogspot.com
olaxstyl.blogspot.com
superposterblog.blogspot.com
dodajka.blogspot.com
nie-od-dzis-wiadomo.blogspot.com
infozmojejreki.blogspot.com
dzienniknocny24.blogspot.com
czytelniapost.blogspot.com
jawneinfo.blogspot.com
papers24h.blogspot.com
dominik-kowalski.blogspot.com
swiat24h.blogspot.com
smerfolandialive.blogspot.com
w-portfelu.blogspot.com
krokodylonline.blogspot.com
sprawanasza.blogspot.com
hellodobrydzien.blogspot.com
mariusz-1977.blogspot.com
informatorpolska.blogspot.com
serkowskinazywo.blogspot.com
katarzyna-pisze.blogspot.com
zenkoblog.blogspot.com
polska-i-swiat.blogspot.com
staszek-nowak.blogspot.com
o-l-e-news.blogspot.com
blogomanizm.blogspot.com
postownikdzienny.blogspot.com
polakpolska.blogspot.com
profilinformacyjny.blogspot.com
kanonzywy.blogspot.com
razdwatrzydzis.blogspot.com
tunaszeswiaty.blogspot.com
ostatnio-dodane.blogspot.com
slimaczek88.blogspot.com
stonogipazur.blogspot.com
alikubu.blogspot.com
wioljera.blogspot.com
pionablog.blogspot.com
doloris27.blogspot.com
raportbiz.blogspot.com
ok-247.blogspot.com
bjak-blog.blogspot.com
czasznak.blogspot.com
wedrownik365.blogspot.com
pieniadzowo.blogspot.com
mniammniaminfo.blogspot.com
juleczkowa.blogspot.com
latalko.blogspot.com
kukustrefa.blogspot.com
zpr-blog.blogspot.com
kolorowy-las.blogspot.com
informacje-na-ziemi.blogspot.com
jakub-alicjowy.blogspot.com
mirek.co.pl
ziemia.co.pl
informator.co.pl
polska24.co.pl
bloger.co.pl
normal.co.pl
jola.co.pl
alicja.co.pl
conowego.co.pl
kuba.co.pl
news24.co.pl
tldr.co.pl
czas.co.pl
teraz.co.pl
wrona.co.pl
arena.co.pl
swiat.co.pl
wwwujek.co.pl
czytelnia.co.pl
media.co.pl
popularne.co.pl
wrota.co.pl
super.co.pl
co-sie-dzieje.co.pl
mowi-sie.co.pl
thebest.co.pl
zobacz.co.pl
latek.co.pl
wiki.co.pl
julkasz.co.pl
melka.co.pl
sprawy.co.pl
tematdnia.co.pl
link-informacyjny.co.pl
archiwum.co.pl
info24.co.pl
najlepsze.co.pl
portal.co.pl
korona.co.pl
blogi.co.pl
kraina.co.pl
kraj.co.pl
i24.co.pl
stylzycia.co.pl
magazyn.co.pl
posty.co.pl
rzeczywisty.pl
planeta.co.pl
wnecie.co.pl
ludzie.co.pl
aktualnosci.co.pl/
anastazja.co.pl/
domek.co.pl/
gospodarze.co.pl/
infobiznes.co.pl/
med.co.pl/
nazdrowie.co.pl/
newsy.co.pl/
portfel.co.pl/
dziendobry.co.pl
naszdom.co.pl
lubiszto.co.pl
stronabiznesowa.co.pl
imbirowo.co.pl
temat24.co.pl
planeta-wnetrz.co.pl
blogaska.co.pl
bank-informacji.co.pl
zdrowastrona.co.pl
styl.co.pl
turbofinanse.pl
By using data from the European space telescope Gaia, the research team was able to study a much larger area of the Milky Way's disk than was previously possible. By measuring how strong the ripples are in different parts of the disc, the researchers have begun to piece together a complex puzzle, providing clues about Sagittarius' history and orbit around our home galaxy.
"At the moment, Sagittarius is slowly being torn apart, but 1-2 billion years ago it was significantly larger, probably around 20 percent of the mass of the Milky Way's disk," says Paul McMillan.
The researchers were surprised by how much of the Milky Way they could study using the data from Gaia. To date the telescope, which has been in operation since 2013, has measured the movement across the sky of approximately two billion stars and the movement towards or away from us of 33 million.
"With this new discovery, we can study the Milky Way in the same way that geologists draw conclusions about the structure of the Earth from the seismic waves that travel through it. This type of "galactic seismology" will teach us a lot about our home galaxy and its evolution," Paul McMillan concludes.
Materials provided by Lund University
Report this wiki page