The far side of the milky way maxplanckgesellschaft. Because the near segment of the scutumcentaurus arm i. Wim in the scutumcentaurus arm at galactic longitudes 310 ii emission from warm ionized gas in the scutumcentaurus arm by alex s. These two arms shoot out from each side of the ovalshaped galactic core. At the centaurus, you have the opportunity to shop, dine and let your kid enjoy at funcity or you watch movie. Mapping spiral structure on the far side of the milky way. The spiral arms of the milky way are being accurately located for the first time via trigonometric parallaxes of massive star forming regions with the bessel survey, using the very long baseline array and the european vlbi network, and with the japanese vera project. Scutumcentaurus arm, as best we can measure its position in co positionvelocity space. In 2011 the same cfa astronomers were the first to discover a largescale spiral feature within this distant warp which they called the outer scutum centaurus arm osc.
The scutumcentaurus arm, also known as scutumcrux arm, is a long, diffuse curving streamer of stars, gas and dust that spirals outward from the proximate end of the milky ways central bar. In 2008, observations using the spitzer space telescope failed to show the. Generally, our data are in agreement with the farextension of the scutum centaurus arm in the second quadrant. Nessie lies within a few pcs of the physical galactic midplane. The scutum centaurus arm, also known as scutum crux arm, is a long, diffuse curving streamer of stars, gas and dust that spirals outward from the proximate end of the milky ways central bar. Planum boreum, at the northeern pole, and planum australe to the south. A possible extension of the scutumcentaurus arm into the. Subsequent studies placed the osc at a distance from the galactic center of over forty thousand lightyears. Fun facts our galactic address might be written as. The white dashed line in figure 3 is a log spiral that was. The osc arm appears to be the outer galaxy continuation of the scutumcentaurus arm, and is. Barger no static citation data no static citation data cite. Generally, our data are in agreement with the far extension of the scutumcentaurus arm in the second quadrant. The milky way has arms and youve probably never even.
Here we provide a catalog of rrl and radio continuum properties for 302 hii regions detected out of 324 targets. The most common spiral arms in the milky way galaxy. The milky way has been assumed since the 1950s to have four spiral arms although the evidence for this has never been strong. Here we describe a computer program that leverages these results to significantly improve the accuracy and. These two appear to be mostly concentrations of gas. Pdf a possible extension of the scutumcentaurus arm.
And s ii emission from warm ionized gas in the scutum. This suggests that the carinasagittarius arm is a minor arm, along with the norma arm outer arm. Massive star formation in the galaxy if this speculation is correct, a comparison of the star formation in the l 302. Connect negative side of battery to scutumcentaurus arm, with gold tape, over the electrical tape. This estimate agrees with the trigonometric parallax. Generally, our data are in agreement with the far extension of the scutum centaurus arm in the second quadrant. It originates relatively close to the suns present position in the galaxy, and follows a sweeping arc of about 80,000 light years to the opposite side of the galactic disc. A possible extension of the scutumcentaurus arm into the outer second quadrant y an sun 1, 2, 3, y e xu 1, ji y ang 1, f a cheng li 1, xin yu du 1, shao bo zhang 1, xin zhou 1. A parallaxbased distance estimator for spiral arm sources. The two major arms are the perseus arm and the scutumcentaurus arm, as depicted in fig. A possible extension of the scutumcentaurus arm into the outer second quadrant by yan sun, ye xu, ji yang, fa cheng li, xin yu du, shao bo zhang and xin zhou no static citation data no static citation data cite.