All rights reserved.Ī new moderately r-process-enhanced metal-poor star, RAVE J093730.5−062655, has been identified in the Milky Way halo as part of an ongoing survey by the R-Process Alliance. The kinematics of J0937-0626, based on Gaia DR2 data, indicate a retrograde orbit in the Milky Way halo J0937-0626 was therefore likely accreted from a dwarf galaxy that had significant r-process enrichment. The r-process enhancement of J0937-0626 is likely due to a separate event, which suggests that its birth environment was highly enriched in r-process elements. A comparison with Milky Way field stars at = -2.5 suggests that J0937-0626 was enriched in material from an event, possibly a Type Ia supernova, that created a significant amount of Cr, Mn, Fe, and Ni and smaller amounts of Ca, Sc, Ti, and Zn. The low ratios can be explained by an ∼0.6 dex excess of Fe J0937-0626 is therefore similar to the subclass of 'iron-enhanced' metal-poor stars. At = -1.86, J0937-0626 is found to have subsolar ratios for nearly every light, α, and Fe-peak element. The temperature and surface gravity indicate that J0937-0626 is likely a horizontal branch star. Higher compression factors (7 or more) are strongly disfavored based on multiple criteria, arguing for inefficient particle acceleration in the Balmer shocks of 0509-67.5.Ī new moderately r-process-enhanced metal-poor star, RAVE J093730.5-062655, has been identified in the Milky Way halo as part of an ongoing survey by the R-Process Alliance. Using HST narrow-band H erg for the first time from shock kinematics alone. The X-ray observations of these objects open a window onto ages past, telling us what processes went on during the supernova explosions that originated them, and further back in time, how the supernova progenitor modified its surroundings. Be that as it may, if the soft clocks do represent the passage of time, it is easy to draw an analogy between The Persistence of Memory and young SNRs like 0509 − 67.5. Dal ́ ı once commented that the idea of the soft clocks came to him from the observation of a piece of Camembert cheese melting in the summer heat. Other interpretations are definitely possible, and equally valid - this being, after all, surrealism.

The most common interpretation is that the famous ‘soft clocks’ are a metaphor for the passage of time, and the ants represent the inevitable consequence thereof: corruption of the flesh.

MoMA Highlights, New York: The Museum of Modern Art). meaning of Salvador Dal ́ ı’s painting The Persistence of Memory (Figure 10) has been discussed at length elsewhere (see f.i.

The persistence of memory meaning ism