On the Luminosities, Motions, and Space Distribution of the Nearer Northern O-B5 Stars.

Blaauw, Adriaan

doi:10.1086/146180

Cited by 69 publications

(54 citation statements)

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“…In general, where there is overlap, the reddening values show good agreement with those stated in the literature. We compare our averaged spectroscopic parallax distances with those determined by Kenyon et al (1994), Walter & Boyd (1991), Lesh (1968), and Blaauw (1956) 8 http://ads.harvard.edu/cgi-bin/bbrowse?book=hsaa&page=45 in Figure 5. For the majority of the objects, the spectroscopic parallax distances are in agreement within 1σ with those determined by Hipparcos.…”

Section: Distance Criterion and Methodsmentioning

confidence: 99%

“…Blaauw (1956) identified Casseiopeia-Taurus (hereafter Cas-Tau) as an OB association lying between 140 and 220 pc using the convergent-point method. A debate ensued concerning the relationship of the young Taurus-Auriga molecular cloud to the older Cas-Tau OB association, but it has now been resolved that they are unrelated in both space and age (see below).…”

Section: Introductionmentioning

confidence: 99%

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B- And a-Type Stars in the Taurus-Auriga Star-Forming Region

Mooley

Hillenbrand

Rebull

et al. 2013

ApJ

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We describe the results of a search for early-type stars associated with the Taurus-Auriga molecular cloud complex, a diffuse nearby star-forming region noted as lacking young stars of intermediate and high mass. We investigate several sets of possible O, B, and early A spectral class members. The first is a group of stars for which mid-infrared images show bright nebulae, all of which can be associated with stars of spectral-type B. The second group consists of early-type stars compiled from (1) literature listings in SIMBAD, (2) B stars with infrared excesses selected from the Spitzer Space Telescope survey of the Taurus cloud, (3) magnitude-and color-selected point sources from the Two Micron All Sky Survey, and (4) spectroscopically identified early-type stars from the Sloan Digital Sky Survey coverage of the Taurus region. We evaluated stars for membership in the Taurus-Auriga star formation region based on criteria involving: spectroscopic and parallactic distances, proper motions and radial velocities, and infrared excesses or line emission indicative of stellar youth. For selected objects, we also model the scattered and emitted radiation from reflection nebulosity and compare the results with the observed spectral energy distributions to further test the plausibility of physical association of the B stars with the Taurus cloud. This investigation newly identifies as probable Taurus members three B-type stars: HR 1445 (HD 28929), τ Tau (HD 29763), 72 Tau (HD 28149), and two A-type stars: HD 31305 and HD 26212, thus doubling the number of stars A5 or earlier associated with the Taurus clouds. Several additional early-type sources including HD 29659 and HD 283815 meet some, but not all, of the membership criteria and therefore are plausible, though not secure, members.

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Section: Distance Criterion and Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

B- And a-Type Stars in the Taurus-Auriga Star-Forming Region

Mooley

Hillenbrand

Rebull

et al. 2013

ApJ

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“…An explosion of this sort would produce an expanding shell. As a source of stellar wind or an explosion, Blaauw [99,100] examined the stars in the Cas-Tau OB association. At present, this association is spread out over a substantial space, but the cluster a Per lies at its center (Fig.…”

Section: Supernova Explosionmentioning

confidence: 99%

The Gould Belt

Бобылев

2014

Astrophysics

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This review is devoted to studies of the Gould belt and the Local system. Since the Gould belt is the giant stellar-gas complex closest to the sun, its stellar component is characterized, along with the stellar associations and diffuse clusters, cold atomic and molecular gas, high-temperature coronal gas, and dust contained in it. Questions relating to the kinematic features of the Gould belt are discussed and the most interesting scenarios for its origin and evolution are examined.

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“…I later showed that this process can be recognized even more convincingly, and on larger scale, in the structure and kinematics of the Gould Belt (Blaauw 1965a). In 1953, upon arrival at Yerkes, I undertook a systematic study of the northern O-B5 stars, the northern complement of my work on the southern Sco-Cen region (Blaauw 1956). Bill Morgan had kindly made his classifications in the MK system available, and H.R.…”

Section: Stellar Associationsmentioning

confidence: 99%

My Cruise Through the World of Astronomy

Blaauw¹

2004

Annu. Rev. Astron. Astrophys.

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▪ Abstract I was born in 1914 in Amsterdam. I grew up there, filling my teenage years with activities as an amateur astronomer. I later studied at Leiden University and volunteered at Leiden Observatory. From 1938 to 1945, I was assistant at the Kapteyn Institute in Groningen, including during the war years 1940–1945, returning to Leiden in October 1945. After prolonged stays at Yerkes Observatory in 1947–1948 and 1952, and participation in Leiden's astrometric Kenya expedition in 1949–1950, I became associate professor at Yerkes Observatory in the fall of 1953. In 1957, I returned to the Kapteyn Institute and soon became involved in the creation of ESO, of which I became scientific director in 1968 and director general from 1970 to 1974. In 1975, I joined Leiden Observatory again, staying until my retirement in 1981, and since then I have enjoyed the hospitality of the Kapteyn Institute. I was president of the IAU from 1976 to 1979. From 1982 to 1989, I was chairman of the Scientific Programs Selection Committee for the European Space Agency's satellite, Hipparcos. My principal research interests have been in galactic structure and star formation, with emphasis on stellar associations. In addition to my astronomical interests, I have researched and published on Dutch village history.

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On the Luminosities, Motions, and Space Distribution of the Nearer Northern O-B5 Stars.

Cited by 69 publications

References 0 publications

B- And a-Type Stars in the Taurus-Auriga Star-Forming Region

B- And a-Type Stars in the Taurus-Auriga Star-Forming Region

The Gould Belt

My Cruise Through the World of Astronomy

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