Ribera

Walsh, Donald D.; Trapier, Elizabeth du Gue

doi:10.2307/335797

Cited by 5 publications

(9 citation statements)

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“…The inspection of the optical emission images shows that the bright nebular clump around LS 1883 has dusty lanes crossing it, showing that the dust is intimately associated with the compact H ii region. LS 1883 was classified as an O9.5V star by Walsh (1984), and we confirm this classification (see below). This star is placed slightly off centre to the south‐east of the nebular clump, as seen in the emission‐line optical images, but in the IR images (see Fig.…”

Section: Discussionsupporting

confidence: 80%

“…Furthermore, the comparison with the Walborn & Fitzpatrick (1990) OB Stars Spectral Atlas shows that the spectrum of LS 1883 resembles that of O9.5V star HD 93027, including the presence of C III absorption lines. Our spectral classification of LS 1883 is in agreement with the previous one by Walsh (1984). We note that even though Walsh's sky-subtracted stellar spectrum was contaminated with emission lines originating from the nebula, he arrived at the same result as us.…”

Section: Ls 1883 and Ss73 24supporting

confidence: 90%

“…LS 1883 is producing a blister-like H II region opening the cavity to the south-west, and is carving its natal molecular cloud to the north-east where most of the IR sources of the cluster are located. Walsh (1984) detected a splitting in the Hα nebular profile centred in this O9.5V star of about 25 km s −1 , suggesting an expanding shell with a velocity of about 12 km s −1 .…”

Section: Imagingmentioning

confidence: 81%

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G287.84-0.82: an infrared star cluster in the Carina nebula

Hägele

Colombo

Barbá

et al. 2004

Monthly Notices of the Royal Astronomical Society

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We have studied the properties of an infrared cluster embedded in the gas and dust of the southern part of the Carina nebula (NGC 3372), where the probable existence of current star formation has already been predicted. We used mid‐infrared (A and C bands) and near‐infrared (JHKs) images from the Midcourse Space Experiment and the Two‐Micron All‐Sky Survey, respectively, combined with an optical Hα narrow‐band filter image obtained at the Cerro Tololo Inter‐American Observatory. The infrared star cluster has at least 17 members, and its parameters, radius and stellar density are in very good agreement with high‐ to intermediate‐mass star formation scenarios. The detected infrared sources have roughly the same intrinsic infrared excess determined from their position in colour–colour and colour–magnitude diagrams, suggesting that these objects could be related to pre‐main‐sequence stars of high to intermediate mass. Furthermore, we present a low‐dispersion spectrum of the LS 1883 (O9.5V) star located near the centre of the infrared cluster. The position of this object in the colour–colour and colour–magnitude infrared diagrams lies close to the reddening vector of a zero‐age main‐sequence O9V spectral‐type star, and it seems to be the first star of this cluster to emerge. All these facts are consistent with the current star‐forming scenarios associated with highly embedded star clusters.

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Section: Discussionsupporting

confidence: 80%

Section: Ls 1883 and Ss73 24supporting

confidence: 90%

Section: Imagingmentioning

confidence: 81%

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G287.84-0.82: an infrared star cluster in the Carina nebula

Hägele

Colombo

Barbá

et al. 2004

Monthly Notices of the Royal Astronomical Society

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“…On a global scale, the relative importance of this triggered second generation compared to the first‐generation stars in Tr 14 and 16 is not yet clear. The most massive star currently known in this second‐generation South Pillar region is CPD‐59°2661, which is an O9 V star at the centre of the Treasure Chest cluster (Walsh 1984; Smith et al 2005b). The pillar containing the Treasure Chest cluster is the brightest of the South Pillars at thermal‐IR to mm wavelengths (Smith et al 2000; Rathborne et al 2002; K. Brooks et al, in preparation).…”

Section: Large‐scale Multiwavelength Morphologymentioning

confidence: 99%

A census of the Carina Nebula - II. Energy budget and global properties of the nebulosity

Smith¹,

Brooks

2007

Monthly Notices of the Royal Astronomical Society

143

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The first paper in this series took a direct census of energy input from the known OB stars in the Carina Nebula, and in this paper we study the global properties of the surrounding nebulosity. This detailed comparison may prove useful for interpreting observations of extragalactic giant H ii regions and ultraluminous infrared (IR) galaxies. We find that the total IR luminosity of Carina is about 1.2 × 107 L⊙, accounting for only about 50–60 per cent of the known stellar luminosity from Paper I. Similarly, the ionizing photon luminosity derived from the integrated radio continuum is about 7 × 1050 s−1, accounting for ∼75 per cent of the expected Lyman continuum from known OB stars. The total kinetic energy of the nebula is about 8 × 1051 erg, or ∼30 per cent of the mechanical energy from stellar winds over the lifetime of the nebula, so there is no need to invoke a supernova (SN) explosion based on energetics. Warm dust grains residing in the H ii region interior dominate emission at 10–30 μm, but cooler grains at 30–40 K dominate the IR luminosity and indicate a likely gas mass of ∼106 M⊙. We find an excellent correlation between the radio continuum and 20–25 μm emission, consistent with the idea that the ∼80‐K grain population is heated by trapped Lyα photons. Similarly, we find a near perfect correlation between the far‐IR optical depth map of cool grains and 8.6‐μm hydrocarbon emission, indicating that most of the nebular mass resides as atomic gas in photodissociation regions and not in dense molecular clouds. Synchronized star formation around the periphery of Carina provides a strong case that star formation here was indeed triggered by stellar winds and ultraviolet radiation. This second generation appears to involve a cascade toward preferentially intermediate‐ and low‐mass stars, but this may soon change when η Carinae and its siblings explode. If the current reservoir of atomic and molecular gas can be tapped at that time, massive star formation may be rejuvenated around the periphery of Carina much as if it were a young version of Gould's Belt. Furthermore, when these multiple SNe occur, the triggered second generation will be pelted repeatedly with SN ejecta bearing short‐lived radioactive nuclides. Carina may therefore represent the most observable analogue to the cradle of our own Solar system.

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“…42 As Claire Walsh has noted, in an era before there were many branded products, the shop, and by definition, the shopkeeper, became the brand which needed to be sold, to get customers into the shop. 43 By using both Joynes's connections to the fashionable London tailoring trade and his own familial associations with a reputable city draper, Muston presumably hoped to build up his own reputation as the retailer of choice for respectable society on the island.…”

mentioning

confidence: 99%

‘…[NO] SPOT IN THE WHOLE WORLD OFFERS THE ADVANTAGES TO THE CAPITALIST WHICH THESE COLONIES DO…’: SETTING UP A DRAPER’S SHOP IN VAN DIEMEN’S LAND DURING THE 1830s

Toplis

2013

Family & Community History

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In 1835, John Muston wrote to his brother-in-law, the Birmingham draper Joseph James, from Hobart, Van Diemen's Land. Muston sought to convince James of the profits he might make by diversifying into trade with the other side of the world. Using this family trading network as a case study, this article will discuss the colonial drapery and clothing trades during the 1830s. Common difficulties for shopkeepers of the period will be highlighted, for instance, the necessity of quickly adapting to the reality of the commercial environment they operated within, rather than the envisaged ideal market. Pragmatic solutions for all consumer preferences needed to be ascertained and swiftly acted upon leading to variety of ways to retail to people across the social spectrum. The enterprise and opportunities for international trade created by England's provincial retailers, particularly as part of family networks, is therefore uncovered. Alison ToplisAlthough there has been much work on both clothing and consumption during the early 19 th century, how clothing was actually supplied to consumers, particularly provincially, has received less attention. 4 Valuable research into Australian colonial dress has been pioneered by Margaret Maynard and shopping during the colonial period by Beverley Kingston. 5 This article will link the supply of clothing and drapery to what clothing customers sought to buy within the colonial context of the town of Hobart, Van Diemen's Land. This analysis will enable conclusions to be drawn about the importance of such colonial markets for both seller and buyer and have implications for research into the provincial retail trade in England.This article is based on over a hundred letters received by Birmingham draper Joseph James, along with associated accounts and bills. However, as these are predominantly written by John Muston it is very much a one sided account. Additional evidence about the business has been found in Australian newspapers of the period, and this has been pieced together with sources from Birmingham to form a picture of the trading partnership of these two men.John Muston lived in Derby and was originally in the tea, hop and porter trades. In 1833, he proposed a deal with James after 'failing' in the hop business. This was an opportunity for the whole family, who had a variety of experiences in the retail trade, particularly in the drapery sector, and the foundation of a 'family enterprise' for mutual profit common during this period. 6 John Muston's father, William, had been a woollen draper in Cloth Fair, Smithfield, from about 1788 to 1805 and his maternal uncle, James Blakesley was also a cloth factor in Basinghall Street, London. Joseph James's brother was involved in the tailoring trade in Leominster, Herefordshire, and he was connected to the Vale family on his maternal side, who were also in the drapery trade in Leominster. James was married to Muston's sister Mary and Muston's wife's brother, Richard Joynes, a tailor, was already in Van Diemen's Land. 7 Although Muston was...

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Ribera

Cited by 5 publications

References 0 publications

G287.84-0.82: an infrared star cluster in the Carina nebula

G287.84-0.82: an infrared star cluster in the Carina nebula

A census of the Carina Nebula - II. Energy budget and global properties of the nebulosity

‘…[NO] SPOT IN THE WHOLE WORLD OFFERS THE ADVANTAGES TO THE CAPITALIST WHICH THESE COLONIES DO…’: SETTING UP A DRAPER’S SHOP IN VAN DIEMEN’S LAND DURING THE 1830s

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