Derek Ward-Thompson

BIMA N2H+ 1-0 mapping observations of L183 -- fragmentation and spin-up in a collapsing, magnetized, rotating, pre-stellar core (2009)

Kirk, Jason M., Crutcher, Richard M., Ward-Thompson, Derek

We have used the Berkeley-Illinois-Maryland Array (BIMA) to make deep N2H+ 1-0 maps of the pre-stellar core L183, in order to study the spatial and kinematic substructure within the densest part of...

The Spitzer survey of interstellar clouds in the Gould Belt. II. The Cepheus Flare observed with IRAC and MIPS (2009)

Kirk, Jason M., Ward-Thompson, Derek, Di Francesco, James, Bourke, Tyler L., Evans II, Neal J., Merín, Bruno, ...

We present Spitzer IRAC (~2 deg^2) and MIPS (~8 deg^2) observations of the Cepheus Flare which is associated with the Gould Belt, at an approximate distance of ~300 pc. Around 6500 sources are...

The relationship between the prestellar core mass function and the stellar initial mass function (2007)

Goodwin, Simon P, Nutter, Dave, Kroupa, Pavel, Ward-Thompson, Derek, Whitworth, Anthony P

Stars form from dense molecular cores, and the mass function of these cores (the CMF) is often found to be similar to the form of the stellar initial mass function (IMF). This suggests that the form...

A SCUBA Survey of Orion - the Low-Mass End of the Core Mass Function (2007)

Ward-Thompson, Derek, Nutter, D.

A SCUBA Survey of Orion - the Low-Mass End of the Core Mass Function (2007)

Ward-Thompson, Derek, Nutter, D.

SCUBA polarisation observations of the magnetic fields in the prestellar cores L1498 and L1517B (2006)

Kirk, Jason M., Ward-Thompson, Derek, Crutcher, Richard M.

We have mapped linearly polarized dust emission from the prestellar cores L1498 and L1517B with the James Clerk Maxwell Telescope (JCMT) using the Submillimetre Common User Bolometer Array (SCUBA)...

First Ground-Based 200-micron Observing with THUMPER on JCMT - Sky Characterisation and Planet Maps (2005)

Ward-Thompson, Derek, Ade, Peter A. R., Araujo, H., Coulson, I., Cox, James, Davis, G. R., ...

First Ground-Based 200-micron Observing with THUMPER on JCMT - Sky Characterisation and Planet Maps (2005)

Ward-Thompson, Derek, Ade, Peter A. R., Araujo, H., Coulson, I., Cox, James, Davis, G. R., ...

The Initial Conditions of Isolated Star Formation. VI. SCUBA Mapping of Pre-stellar Cores (2005)

Ward-Thompson, Derek, Kirk, J. M., Andre, P.

The Initial Conditions of Isolated Star Formation. VI. SCUBA Mapping of Pre-stellar Cores (2005)

Ward-Thompson, Derek, Kirk, J. M., Andre, P.

Simulating star formation in molecular cores II. The effects of different levels of turbulence (2004)

Goodwin, Simon P., Whitworth, Anthony P, Ward-Thompson, Derek

(Abridged) We explore, by means of a large ensemble of SPH simulations, how the level of turbulence affects the collapse and fragmentation of a star-forming core. All our simulated cores have the...

An explanation for the unusual IMF in Taurus (2004)

Goodwin, Simon P., Whitworth, A. P., Ward-Thompson, Derek

In comparison with other well studied star formation regions, Taurus is unusual in several respects. (i) Its stellar initial mass function (IMF) peaks at relatively high mass ($\sim 0.8 M_\odot$),...

Detailed Studies of Cloud Cores: Probing the Initial Conditions for Protostellar Collapse (2003)

Andre, Philippe, Belloche, Arnaud, Hennebelle, Patrick, Ward-Thompson, Derek

Improving our understanding of the earliest stages of star formation is crucial to gain insight into the origin of stellar masses, multiple systems, and protoplanetary disks. We discuss recent...

The Initial Conditions of Isolated Star Formation. V: ISOPHOT Imaging and the Energy Balance of Pre-Stellar Cores (2002)

Ward-Thompson, Derek

The Initial Conditions of Isolated Star Formation. V: ISOPHOT Imaging and the Energy Balance of Pre-Stellar Cores (2002)

Ward-Thompson, Derek

An ISOCAM Absorption Survey of the Structure of Pre-stellar Cloud Cores (2000)

Bacmann, Aurore, Andre, Philippe, Puget, Jean-Loup, Abergel, Alain, Bontemps, Sylvain, Ward-Thompson, Derek

We present the results of a mid-infrared (7 micron) imaging survey of a sample of 24 starless dense cores carried out at an angular resolution of 6 arcsec with the ISOCAM camera aboard the Infrared...

From Pre-Stellar Cores to Protostars: The Initial Conditions of Star Formation (1999)

Andre, Philippe, Ward-Thompson, Derek, Barsony, Mary

The last decade has witnessed significant advances in our observational understanding of the earliest stages of low-mass star formation. The advent of sensitive receivers on large radio telescopes...