SIMBAD references

2008ApJ...678..200C - Astrophys. J., 678, 200-218 (2008/May-1)

Young stellar objects in the Large Magellanic Cloud: N63 and N180 H II regions.

CAULET A., GRUENDL R.A. and CHU Y.-H.

Abstract (from CDS):

We used Spitzer infrared observations to find the young stars of two H II regions in the Large Magellanic Cloud, N63 and N180. The young stellar object (YSO) candidates were identified in each nebula by means of color-color, color-magnitude diagrams, and the shapes of their spectral energy distributions (SEDs). The most luminous YSOs are found near the ionization fronts within strong 8 µm emission clumps. Most YSOs, less luminous, are seen in projection inside the H II regions. HST images show several Class I stars that have emerged along the borders of the H II regions; other YSOs are embedded in cometary clouds. The most luminous YSO of N63 is connected to a string of pointlike sources. Its SED can be modeled by a central source of stellar mass M* between 7 and 11 M, with a circumstellar disk of outer radius Rd of ∼55 AU, and an envelope of moderate accretion rate, M{dot}env of ∼2x10–5 M/yr. N180 is experiencing a phase of star formation more intense than N63, attested by the properties of its most luminous YSO: M* of 25 M, Rdof ∼200 AU, and M{dot}envof ∼1.5x10–3 M/yr. The modes of triggered star formation in N63 and N180 appear similar to those seen in Galactic H II regions.

Abstract Copyright:

Journal keyword(s): ISM: H II Regions - Galaxies: Magellanic Clouds - Stars: Formation

VizieR on-line data: <Available at CDS (J/ApJ/678/200): table3.dat table5.dat table6.dat notes.dat>

Nomenclature: Table 3: [CGC2008] JHHMMSS.ss+DDMMSS.s N=18. Table 5: [CGC2008] N63 NN, [CGC2008] N63 NNC, N=29 among (Nos 8-50). Table 6: [CGC2008] N180 NN, [CGC2008] N180 NNC, N=38 among (Nos 9-45).

Simbad objects: 104

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