SIMBAD references

2019A&A...632L..13M - Astronomy and Astrophysics, volume 632, L13-13 (2019/12-0)

Hunting ghosts: the iconic stellar stream(s) around NGC 5907 under scrutiny.

MULLER O., VUDRAGOVIC A. and BILEK M.

Abstract (from CDS):

Stellar streams are regarded as crucial objects for testing galaxy formation models because their morphology traces the underlying potentials and their occurrence tracks the assembly history of the galaxies. The existence of one of the most iconic stellar streams, the double loop around NGC 5907, has recently been questioned by new observations with the Dragonfly telescope. This new work only finds parts of the stream, even though a 1σ surface brightness limit of 30.3mag/arcsec2 in the g band was reached. Using 7.2h of luminance L-band imaging with the Milankovic 1.4-m telescope, we have reobserved the putative double-loop part to confirm or reject this assessment. We do not find signs of the double loop, but see only a single knee-shaped stellar stream. Comparing our results to the data by the Dragonfly team, we find the same features. Our observations reach a 1σ surface brightness limit of 29.7mag/arcsec2 in the g band. These findings emphasize the need for independent confirmation of detections of very low-surface brightness features.

Abstract Copyright: © O. Müller et al. 2019

Journal keyword(s): galaxies: individual: NGC 5907 - galaxies: formation - techniques: image processing - galaxies: interactions - galaxies: structure

VizieR on-line data: <Available at CDS (J/A+A/632/L13): list.dat fits/*>

Simbad objects: 5

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2019A&A...632L..13M and select 'bookmark this link' or equivalent in the popup menu