GALACTIC BULGE

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Structure and kinematics of Type II Cepheids in the Galactic bulge based on near infrared VVV data

Structure and kinematics of Type II Cepheids in the Galactic bulge based on near infrared VVV data

... the Galactic bulge in a sky area that covers almost the entire OGLE survey area and provides an optimal framework to characterize the structure of the old population of the Galactic bulge with ...

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Near infrared photometry of globular clusters towards the Galactic bulge: Observations and photometric metallicity indicators

Near infrared photometry of globular clusters towards the Galactic bulge: Observations and photometric metallicity indicators

... Galactic bulge, calibrated on the Two Micron All-Sky Survey photometric system. Differ- ential reddening corrections and statistical field star decontamination are employed for all of these clusters before ...

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The WFC3 galactic bulge treasury program: metallicity estimates for the stellar population and exoplanet hosts

The WFC3 galactic bulge treasury program: metallicity estimates for the stellar population and exoplanet hosts

... the Galactic bulge, obtained with the Wide Field Camera 3 on the Hubble Space Telescope ...the bulge populations resemble those formed via classical dissipative collapse: each field is dominated by ...

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The WFC3 Galactic Bulge Treasury Program: Relative Ages of Bulge Stars of High and Low Metallicity

The WFC3 Galactic Bulge Treasury Program: Relative Ages of Bulge Stars of High and Low Metallicity

... the bulge, NGC 6528 and 6553, which in turn is the same as in the inner halo GC 47 ...the Galactic bulge underwent rapid chemical enrichment to solar abundance and above, and that the bulk of the ...

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Confirmation of a New Metal poor Globular Cluster in the Galactic Bulge

Confirmation of a New Metal poor Globular Cluster in the Galactic Bulge

... We use deep near-IR photometry of the VISTA Variables in the Vía Láctea ( VVV ) Survey and deep DECam Plane Survey ( DECaPS ) optical photometry to con fi rm the physical reality of the candidate globular cluster ( GC ) ...

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Stellar proper motions in the Galactic bulge from deep Hubble Space Telescope ACS WFC photometry

Stellar proper motions in the Galactic bulge from deep Hubble Space Telescope ACS WFC photometry

... the Galactic bulge from the Sagittarius Window Eclipsing Extrasolar Search (SWEEPS) project using ACS WFC on ...of bulge from disk allows a sample of >15,000 bulge objects to be extracted ...

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Oxygen, sodium, magnesium, and aluminium as tracers of the galactic bulge formation

Oxygen, sodium, magnesium, and aluminium as tracers of the galactic bulge formation

... The two elements with even atomic numbers, O and Mg, show a very similar trend (Fig. 6), with a decline of the overabundance with respect to iron as the metallicity increases (much shal- lower for magnesium than for ...

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Heavy elements Ba, La, Ce, Nd, and Eu in 56 Galactic bulge red giants

Heavy elements Ba, La, Ce, Nd, and Eu in 56 Galactic bulge red giants

... The Galactic bulge shares chemical and kinematical properties com- patible with a classic spheroid and a boxy bulge (Minniti ...of bulge stars, and were able to separate up to five stellar ...

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The WFC3 Galactic Bulge Treasury Program: A First Look at Resolved Stellar Population Tools

The WFC3 Galactic Bulge Treasury Program: A First Look at Resolved Stellar Population Tools

... the Galactic bulge may well have formed in the same way, some 10 Gyr ...the bulge, one might expect the age distribution to broaden as one moves from the bulge interior to its edges and ...

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Chemically Dissected Rotation Curves of the Galactic Bulge from Main sequence Proper Motions

Chemically Dissected Rotation Curves of the Galactic Bulge from Main sequence Proper Motions

... of Galactic evolution using archival Hubble Space Telescope imaging ...the Galactic bulge separately for metal- poor and metal-rich main-sequence ...the Galactic bulge rotation curves ...

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Oxygen and zinc abundances in 417 Galactic bulge red giants

Oxygen and zinc abundances in 417 Galactic bulge red giants

... sical bulge is able to reproduce the behaviour of O and Zn abundances in the Galactic bulge, except for Zn in the range ...dwarf bulge stars. In conclusion, studies of the Galactic ...

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Abundances in the Galactic bulge

Abundances in the Galactic bulge

... Still, Johnson et al (2007, 2008) and Cohen et al (2008) derived metallicities for three microlensed dwarfs in the Galactic bulge and found [Fe / H] = +0 . 5 for all of them. They argue that the highest ...

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Milky Way demographics with the VVV survey: IV  PSF photometry from almost one billion stars in the Galactic bulge and adjacent southern disk

Milky Way demographics with the VVV survey: IV PSF photometry from almost one billion stars in the Galactic bulge and adjacent southern disk

... the Galactic halo (Catelan 2009; Vickers et al. 2012). In the Galactic bulge, although metal-rich BHB stars exist, the vast majority of them seem to be metal-poor (Peterson et ...the Galactic ...

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Gauging the Helium Abundance of the Galactic Bulge RR Lyrae Stars

Gauging the Helium Abundance of the Galactic Bulge RR Lyrae Stars

... of Galactic globular clusters and the fi eld of the Galactic halo but have also been found in large numbers toward the bulge of the ...The Galactic bulge is dominated by metal-rich ...

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Deep Hubble Space Telescope Imaging of Globular Clusters toward the Galactic Bulge: Observations, Data Reduction, and Color magnitude Diagrams

Deep Hubble Space Telescope Imaging of Globular Clusters toward the Galactic Bulge: Observations, Data Reduction, and Color magnitude Diagrams

... the Galactic disk, whereas the more metal-poor halo GCs were accreted from satellite galaxies ( ...the Galactic bulge and its GGCs remains an open question, as 24 of the 26 GGCs within 2 kpc of the ...

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A new galactic bulge globular cluster from the vvv survey

A new galactic bulge globular cluster from the vvv survey

... Facultad de Ciencias Exactas Departamento de Ciencias Física A New Galactic Bulge Globular Cluster from the VVV Survey Nuevo Cumulo Globular del Bulbo Galáctico con Datos del VVV Tesis para obtener el[.] ...

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Weighing the two stellar components of the Galactic bulge

Weighing the two stellar components of the Galactic bulge

... There are, in the literature, two sources of confusion con- cerning the MP component in the Galactic bulge. First, if the MP has a spehroidal spatial distribution, then this component must have a classical ...

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Reddening and metallicity maps of the Milky Way bulge from VVV and 2MASS II  The complete high resolution extinction map and implications for Galactic bulge studies

Reddening and metallicity maps of the Milky Way bulge from VVV and 2MASS II The complete high resolution extinction map and implications for Galactic bulge studies

... outer bulge, but, as already stated in the literature the Schlegel maps are unreliable for regions within |b| < ∼ 6 ◦ ...of bulge stellar populations and ...Way bulge at high spatial ...

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Three dimensional interstellar extinction map toward the Galactic bulge

Three dimensional interstellar extinction map toward the Galactic bulge

... the Galactic longitude, which follows the extinction curve vari- ation of Gao et ...the Galactic plane, indicating a strong variation with Galactic latitude (see ...the Galactic center ...

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Li rich red giant branch stars in the Galactic bulge

Li rich red giant branch stars in the Galactic bulge

... including the Li line at 6707.18 Å. The S /N ranges from 40 to 90 and the resolution is R ∼ 20 000. In total, we measured Li in 204 + 213 = 417 bulge giants, whose location in the color mag- nitude diagram (CMD) ...

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