Erratum: “A Low‐Latitude Halo Stream around the Milky Way” (ApJ, 588, 824 [2003])

2004 ◽  
Vol 605 (1) ◽  
pp. 575-577 ◽  
Author(s):  
Brian Yanny ◽  
Heidi Jo Newberg ◽  
Eva K. Grebel ◽  
Steve Kent ◽  
Michael Odenkirchen ◽  
...  
Keyword(s):  
Milky Way ◽  
Low Latitude

scholarly journals A Low‐Latitude Halo Stream around the Milky Way

2003 ◽  
Vol 588 (2) ◽  
pp. 824-841 ◽  
Author(s):  
Brian Yanny ◽  
Heidi Jo Newberg ◽  
Eva K. Grebel ◽  
Steve Kent ◽  
Michael Odenkirchen ◽  
...  
Keyword(s):  
Milky Way ◽  
Low Latitude

scholarly journals Discovery of a New Low-Latitude Milky Way Globular Cluster Using GLIMPSE

2005 ◽  
Vol 129 (1) ◽  
pp. 239-250 ◽  
Author(s):  
Henry A. Kobulnicky ◽  
A. J. Monson ◽  
B. A. Buckalew ◽  
J. M. Darnel ◽  
B. Uzpen ◽  
...  
Keyword(s):  
Globular Cluster ◽  
Milky Way ◽  
Low Latitude

scholarly journals A Low Latitude Survey from lII = 27° to 38° at 1410 and 2650 MHz

1969 ◽  
Vol 22 (1) ◽  
pp. 121 ◽  
Author(s):  
M Beard ◽  
FJ Kerr
Keyword(s):  
Milky Way ◽  
Low Latitude ◽  
Contour Maps

This paper presents contour maps of a region of the Milky Way at 1410 and 2650 MHz. A list of sources with values of flux densities and peak temperatures is given.

scholarly journals VVV WIN 1733−3349: a low extinction window to probe the far side of the Milky Way bulge

2020 ◽  
Vol 494 (1) ◽  
pp. L32-L36 ◽  
Author(s):  
R K Saito ◽  
D Minniti ◽  
R A Benjamin ◽  
M G Navarro ◽  
J Alonso-García ◽  
...  
Keyword(s):  
Stellar Population ◽  
Milky Way ◽  
Galactic Structure ◽  
Density Fluctuations ◽  
Surrounding Area ◽  
Low Latitude ◽  
The Past ◽  
Near Ir ◽  
The Mean ◽  
Red Clump

ABSTRACT Windows of low extinction in the Milky Way (MW) have been used along the past decades for the study of the Galactic structure and the stellar population across the inner bulge and disc. Here, we report the analysis of another low extinction near-IR window discovered by the VISTA Variables in the Vía Láctea Survey (VVV). VVV WIN 1733−3349 is about half a degree in size and is conveniently located right in the MW plane, at Galactic coordinates (l, b) = (−5.2, −0.3). The mean extinction of VVV WIN 1733−3349 is $A_{K_{\mathrm{ s}}}$ = 0.61 ± 0.08 mag, which is much smaller than the extinction in the surrounding area. The excess in the star counts is consistent with the reduced extinction and complemented by studying the distribution of red clump (RC) stars. Thanks to the strategic low-latitude location of VVV WIN 1733−3349, we are able to interpret their RC density fluctuations with the expected overdensities due to the presence of the spiral arms beyond the bulge. In addition, we find a clear excess in the number of microlensing events within the window, which corroborates our interpretation that VVV WIN 1733−3349 is revealing the far side of the MW bulge.

New Views From Galactoseismology: Rethinking the Galactic Disk-Halo Connection

2017 ◽  
Vol 13 (S334) ◽  
pp. 185-188
Author(s):  
Allyson A. Sheffield ◽  
Kathryn V. Johnston ◽  
Adrian M. Price-Whelan ◽  
Anastasios Tzanidakis ◽  
Chervin F. P. Laporte ◽  
...  
Keyword(s):  
Formation Mechanism ◽  
Milky Way ◽  
Galactic Disk ◽  
External Perturbation ◽  
Stellar Populations ◽  
Preliminary Evidence ◽  
Low Latitude ◽  
Rr Lyrae Stars ◽  
Rr Lyrae ◽  
Lyrae Stars

AbstractWe present preliminary results from a study exploring the origin of Milky Way substructures, and show initial evidence of a common “kicked-out” formation mechanism for two low-latitude substructures. In this scenario, stars in these substructures formed in the disk and were subsequently “kicked-out” by an external perturbation, such as the merger of an accreted satellite, which created an oscillation in the Galactic disk. To test this origin scenario, we found the fraction of different stellar populations – M giants and RR Lyrae stars – in the Monoceros Ring (also known as GASS) and A13, supplementing a study of stellar populations in the Triangulum-Andromeda cloud. This work provides: (1) the first analysis of the GASS and A13 features based upon their stellar populations; and (2) preliminary evidence of disk stars in the Milky Way that have been relocated to the disk-halo interface due to vertical oscillations of the Milky Way’s disk.

scholarly journals I-GALFA: The Inner-Galaxy ALFA Low-Latitude H I Survey

2009 ◽  
Vol 5 (H15) ◽  
pp. 788-788 ◽  
Author(s):  
Bon-Chul Koo ◽  
Steven J. Gibson ◽  
Ji-hyun Kang ◽  
Kevin A. Douglas ◽  
Geumsook Park ◽  
...  
Keyword(s):  
Milky Way ◽  
Low Latitude ◽  
Milky Way Galaxy ◽  
L Band ◽  
Inner Parts

AbstractThe I-GALFA survey is mapping HI 21 cm emission in the inner parts of our Milky Way Galaxy using the Arecibo L-band Feed Array (ALFA). Examples of various H i features such as supershells and chimneys are shown.

scholarly journals The Pristine Survey – VIII. The metallicity distribution function of the Milky Way halo down to the extremely metal-poor regime

2020 ◽  
Vol 492 (4) ◽  
pp. 4986-5002 ◽  
Author(s):  
K Youakim ◽  
E Starkenburg ◽  
N F Martin ◽  
G Matijevič ◽  
D S Aguado ◽  
...  
Keyword(s):  
Distribution Function ◽  
Globular Clusters ◽  
Milky Way ◽  
Current Data ◽  
Low Latitude ◽  
Chemical Enrichment ◽  
Merger Event ◽  
Low Metallicity ◽  
Metallicity Distribution ◽  
Milky Way Halo

ABSTRACT The Pristine survey uses narrow-band photometry to derive precise metallicities down to the extremely metal-poor regime ($ \rm [Fe/H] \lt -3$), and currently consists of over 4 million FGK-type stars over a sky area of $\sim 2500\, \mathrm{deg}^2$. We focus our analysis on a subsample of ∼80 000 main-sequence turn-off stars with heliocentric distances between 6 and 20 kpc, which we take to be a representative sample of the inner halo. The resulting metallicity distribution function (MDF) has a peak at $ \rm [Fe/H] =-1.6$, and a slope of Δ(LogN)/$\Delta \rm [Fe/H] = 1.0 \pm 0.1$ in the metallicity range of $-3.4\; \lt\; \rm [Fe/H]\; \lt -2.5$. This agrees well with a simple closed-box chemical enrichment model in this range, but is shallower than previous spectroscopic MDFs presented in the literature, suggesting that there may be a larger proportion of metal-poor stars in the inner halo than previously reported. We identify the Monoceros/TriAnd/ACS/EBS/A13 structure in metallicity space in a low-latitude field in the anticentre direction, and also discuss the possibility that the inner halo is dominated by a single, large merger event, but cannot strongly support or refute this idea with the current data. Finally, based on the MDF of field stars, we estimate the number of expected metal-poor globular clusters in the Milky Way halo to be 5.4 for $ \rm [Fe/H]\; \lt\; -2.5$ and 1.5 for $ \rm [Fe/H]\; \lt\; -3$, suggesting that the lack of low-metallicity globular clusters in the Milky Way is not due simply to statistical undersampling.

scholarly journals Mapping low-latitude stellar substructure with SEGUE photometry

2008 ◽  
Vol 4 (S254) ◽  
pp. 121-126
Author(s):  
Jelte T. A. de Jong ◽  
Brian Yanny ◽  
Hans-Walter Rix ◽  
Eric F. Bell ◽  
Andrew E. Dolphin
Keyword(s):  
Systematic Study ◽  
Milky Way ◽  
Galactic Plane ◽  
Stellar Structure ◽  
Low Latitude ◽  
Low Latitudes ◽  
Magnitude Diagram ◽  
The Galaxy ◽  
Shed Light

AbstractEncircling the Milky Way at low latitudes, the Low Latitude Stream is a large stellar structure, the origin of which is as yet unknown. As part of the SEGUE survey, several photometric scans have been obtained that cross the Galactic plane, spread over a longitude range of 50° to 203°. These data allow a systematic study of the structure of the Galaxy at low latitudes, where the Low Latitude Stream resides. We apply colour-magnitude diagram fitting techniques to map the stellar (sub)structure in these regions, enabling the detection of overdensities with respect to smooth models. These detections can be used to distinguish between different models of the Low Latitude Stream, and help to shed light on the nature of the system.

scholarly journals A SHORT SCALE LENGTH FOR THE α-ENHANCED THICK DISK OF THE MILKY WAY: EVIDENCE FROM LOW-LATITUDE SEGUE DATA

2012 ◽  
Vol 752 (1) ◽  
pp. 51 ◽  
Author(s):  
Judy Y. Cheng ◽  
Constance M. Rockosi ◽  
Heather L. Morrison ◽  
Young Sun Lee ◽  
Timothy C. Beers ◽  
...  
Keyword(s):  
Milky Way ◽  
Thick Disk ◽  
Low Latitude ◽  
Short Scale ◽  
Scale Length
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