![]() The advantage of a 3D map is that it can better show astronomers where galaxies are in relation to one another, splitting apart galaxies that may appear close together but that are actually separated in another dimension by millions of light-years. WALLABY represents the first full 3D galactic survey conducted on this scale, and this first data release consists of over 30 terabytes of data from each eight-hour operational day. The ASKAP radio telescope conducting WALLABY operates eight hours a day in an extremely radio-quiet zone in Western Australia's remote Mid West region, which allows WALLABY to find narrow and faint astronomical signals without being swamped by radio interference. It's one of the great strengths of radio surveys they can simply peer through all the stars and dust in our own Milky Way." "WALLABY isn't affected by these limitations. "If our own Milky Way is between us and the galaxy we're trying to observe, the sheer number of stars and dust makes it incredibly hard to see anything else," Tobias Westmeier, a radio astronomer at the University of Western Australia node of the International Centre for Radio Astronomy Research (ICRAR), said in a statement. These observations will form a detailed intergalactic map prompting an investigation that could not be conducted on a similar scale using optical telescopes alone. This is just a drop in the cosmic ocean compared with the quarter of a million galaxies WALLABY is estimated to catalog over its mission.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |