A general catalogue of extended objects in the Magellanic System

Bica, E.; Bonatto, Charles Jose; Dutra, Carlos Maximiliano; Santos, J. F. C.

doi:10.1111/j.1365-2966.2008.13612.x

Cited by 185 publications

(299 citation statements)

References 95 publications

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“…It was later classified by de Oliveira et al (2000) as a star cluster pair or multiple. Bica et al (2008) classified it as a nebula, likely with an embedded cluster and as a member of a pair of stars. The separation from the GPN population in the S −θ diagram, its unusually high ionised mass, and large angular size suggest that this object is part of an H ii region (DEM S50) and not a PN.…”

Section: Smc Pn Mimicsmentioning

confidence: 99%

Radio planetary nebulae in the Small Magellanic Cloud

Leverenz¹,

Filipović²,

Bojičić³

et al. 2016

Astrophys Space Sci

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We present ten new radio continuum (RC) detections at catalogued planetary nebula (PN) positions in the Small Magellanic Cloud (SMC): SMP S6, LIN 41, LIN 142, SMP S13, SMP S14, SMP S16, J 18, SMP S18, SMP S19 and SMP S22. Additionally, six SMC radio PNe previously detected, LIN 45, SMP S11, SMP S17, LIN 321, LIN 339 and SMP S24 are also investigated (re-observed) here making up a population of 16 radio detections of catalogued PNe in the SMC. These 16 radio detections represent ∼15 % of the total catalogued PN population in the SMC. We show that six of these objects have characteristics that suggest that they are PN mimics: LIN 41, LIN 45, SMP S11, LIN 142, LIN 321 and LIN 339. We also present our

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Section: Smc Pn Mimicsmentioning

confidence: 99%

Radio planetary nebulae in the Small Magellanic Cloud

Leverenz¹,

Filipović²,

Bojičić³

et al. 2016

Astrophys Space Sci

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“…1 as a purple triangle. Harris (2007) fields, Bica et al (2008) associations and clusters in the relevant right ascension (2 h -4 h ), and OGLE IV fields 102 up to 125 from Skowron et al (2014) (without numbers for clarity purposes) are also overlapped.…”

Section: The Sfhs In the Magic II Fieldsmentioning

confidence: 99%

The MAGellanic Inter-Cloud (MAGIC) project – II. Slicing up the Bridge

Noël¹,

Conn²,

Read³

et al. 2015

Mon. Not. R. Astron. Soc.

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The origin of the gas in between the Magellanic Clouds (MCs), known as the Magellanic Bridge, has always been the subject of controversy. To shed light into this, we present the results from the MAGellanic Inter-Cloud II (MAGIC II) project aimed at probing the stellar populations in 10 large fields located perpendicular to the main ridge-line of H I in the Inter-Cloud region. We secured these observations of the stellar populations in between the MCs using the WFI (Wide Field Imager) camera on the 2.2 m telescope in La Silla. Using colour-magnitude diagrams, we trace stellar populations across the Inter-Cloud region. In good agreement with MAGIC I, we find significant intermediate-age stars in the Inter-Cloud region as well as young stars of a similar age to the last pericentre passage in between the MCs (∼200 Myr ago). We show here that the young, intermediate-age and old stars have distinct spatial distributions. The young stars correlate well with the H I gas suggesting that they were either recently stripped from the Small Magellanic Cloud (SMC) or formed in situ. The bulk of intermediate-age stars are located mainly in the Bridge region where the H I column density is higher, but they are more spread out than the young stars. They have very similar properties to stars located ∼2 kpc from the SMC centre, suggesting that they were tidally stripped from this region. Finally, the old stars extend to some 8 kpc from the SMC supporting the idea that all galaxies have a large extended metal-poor stellar halo.

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“…Figure 9 (left) shows its CMD obtained from objects with a star-like shape located within 1.9 of the cluster centre; it is characterised by a narrow RGB. Its size corresponds to the estimate by Bica et al (2008) and the cluster star membership of each object has been estimated following the procedure described in Piatti & Bica (2012). NGC 121 has an age of 10.6 Gyr (Dolphin et al 2001) and a metallicity [Fe/H] = −1.19 ± 0.12 dex (Da Costa & Hatzidimitriou 1998).…”

Section: Ngc 121mentioning

confidence: 99%

The VMC survey

Cioni

Bekki

Girardi

et al. 2016

A&A

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Aims. In this study we use multi-epoch near-infrared observations from the VISTA survey of the Magellanic Cloud system (VMC) to measure the proper motions of different stellar populations in a tile of 1.5 deg 2 in size in the direction of the Galactic globular cluster 47 Tuc. We obtain the proper motion of the cluster itself, of the Small Magellanic Cloud (SMC), and of the field Milky Way stars. Methods. Stars of the three main stellar components are selected according to their spatial distributions and their distributions in colour−magnitude diagrams. Their average coordinate displacement is computed from the difference between multiple K s -band observations for stars as faint as K s = 19 mag. Proper motions are derived from the slope of the best-fitting line among ten VMC epochs over a time baseline of ∼1 yr. Background galaxies are used to calibrate the absolute astrometric reference frame. Results. The resulting absolute proper motion of 47 Tuc is (μ α cos(δ), μ δ ) = (+7.26 ± 0.03, −1.25 ± 0.03) mas yr −1 . This measurement refers to about 35 000 sources distributed between 10 and 60 from the cluster centre. For the SMC we obtain (μ α cos(δ), μ δ ) = (+1.16 ± 0.07, −0.81 ± 0.07) mas yr −1 from about 5250 red clump and red giant branch stars. The absolute proper motion of the Milky Way population in the line of sight (l = 305.9, b = −44.9) of this VISTA tile is (μ α cos(δ), μ δ ) = (+10.22 ± 0.14, −1.27 ± 0.12) mas yr −1 and has been calculated from about 4000 sources. Systematic uncertainties associated with the astrometric reference system are 0.18 mas yr −1 . Thanks to the proper motion we detect 47 Tuc stars beyond its tidal radius.

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A general catalogue of extended objects in the Magellanic System

Cited by 185 publications

References 95 publications

Radio planetary nebulae in the Small Magellanic Cloud

Radio planetary nebulae in the Small Magellanic Cloud

The MAGellanic Inter-Cloud (MAGIC) project – II. Slicing up the Bridge

The VMC survey

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