3,250 research outputs found

    Discovery of a Large-scale Wall in the Direction of Abell 22

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    We report on the discovery of a large-scale wall in the direction of Abell 22. Using photometric and spectroscopic data from the Las Campanas Observatory and Anglo-Australian Telescope Rich Cluster Survey, Abell 22 is found to exhibit a highly unusual and striking redshift distribution. We show that Abell 22 exhibits a foreground wall-like structure by examining the galaxy distributions in both redshift space and on the colour-magnitude plane. A search for other galaxies and clusters in the nearby region using the 2dF Galaxy Redshift Survey database suggests that the wall-like structure is a significant large-scale, non-virialized filament which runs between two other Abell clusters either side of Abell 22. The filament stretches over at least >40 Mpc in length and 10 Mpc in width at the redshift of Abell 22.Comment: 6 pages, 4 figures, accepted for publication in MNRAS letter

    Within Katahdin’s Realm: Log Drives and Sporting Camps - Chapter 06: Nahmakanta Stream and Lake Watershed

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    This book’s historical journey on Maine’s West Branch of the Penobscot River and its tributaries is in two parts, logging (chapters 1-7) and sporting camps (chapters 8-11), all of which Fogler Library hosts at its Digital Commons. The journey starts in 1825 when the first loggers began cutting along the river and driving their logs more than 70 river miles to the Bangor sawmills. It ends 151 years later in 1976, the year of the last drive. Maine’s sporting camp history in this region started with enterprising loggers and teamsters who were also trappers and guides who beginning about 1870 took adventurous persons to fishing and hunting locations where they used tents or small trapper’s camps or logging camps. By the early 1890s their camps became known as sporting camps. With few exceptions, I have included structures built through 1920. The text moves the reader upstream beginning where the Penobscot River forks at Nicatou Island with the East Branch leading north and the West Branch heading west-northwest. The reader travels up the West Branch into the Lower Chain Lakes and back into the river flowing under the shadow of Mount Katahdin to the Ripogenus Lake outlet where the journey ends. Along the way, each tributary is explored. The tributaries include Nollesemic Stream; Millinocket Stream and Lake, Sandy Stream; Nahmakanta, Rainbow and Pollywog streams; the Debsconeag Lakes chain; Abol, Katahdin, and Foss and Knowlton streams; and Jo-Mary Lakes, and Cooper and Pratt Brooks. The Introduction, Acknowledgements, and Table of Contents for all 11 chapters accompany chapter 1. The Epilogue, Sources of Information, Names and Related Information, and Glossary are with chapter 11. Chapter 6 includes these subsections: Nahmakanta Drainage: Nahmakanta Stream to Nahmakanta Lake Pollywog Pond Drainage: Pollywog Stream to Penobscot Pond Rainbow Drainage: Rainbow Stream to Rainbow Lak

    832,000 Acres: Maine\u27s 1825 Fire and Its Piscataquis Logging Aftermath, Chapter 2

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    Author\u27s abstract: The 1825 fire consumed 832,000 acres, a great deal of it in the Piscataquis River valley, and was nearly four times the size of Maine’s 1947 fires that consumed 220,000 acres. This is the only book that has more than a couple paragraphs about the fire; it includes all the limited amount of recorded information about the fire that started in the township of Guilford and burned in every direction on a compass. Furthermore, it is the only publication of any form that uses existing information to create a possible map of its boundary lines. The central focus of the book is logging in the aftermath of the fire, the log-driving era of the Piscataquis watershed, c.1800-1953. To know about the great fire (chapter one) leads to a greater understanding of the logging history that followed. Each subsequent chapter is devoted to a major artery of the river and includes two major focal points, “inside the burn” and “outside the burn.” Surprisingly this book is also the only one focused on the history of logging in the log-driving era within the Piscataquis watershed. This watershed has sections that are every bit as fascinating as those with considerable collected log driving lore. It took lumbermen nearly 37 years to figure out how to successfully drive long logs through Gulf Hagas on the West Branch of the Pleasant River. In a 25 mile segment of the East Branch of the Pleasant River, lumbermen built over 20 dams and side dams, and 1,000s of feet of abutments. The totality of the book (with no cover) is five downloads. The first section, includes chapter one, the fire, and the introduction and acknowledgements sections. This, the second section, is the Piscataquis River and its East, West, and South Branches. The third is Sebec River, Sebec Lake and Tributaries. The fourth is the Pleassant River, East and West Branches of the Pleasant River and their Tributaries. The fifth includes chapter five, Schoodic Stream drainage, chapter six, Seboeis Stream drainage, Afterword, Source of Information, and Glossary

    Piscataquis Project: Sporting Camps in the Piscataquis River Watershed, Section D, from Bangor to Greenville

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    Part 4 of a 4 part series on the history of sporting camps along Maine\u27s Piscataquis River watershed beginning with the late 19th century. Author\u27s abstract: The Piscataquis River flows from its headwaters between Shirley and Greenville, Maine south to the Abbot and Guilford area where the river bends to continue east to Howland at its mouth on the Penobscot River. All the waterways draining west and south to the river are included in a series of four sections, A-D. Sporting camp development in this watershed began in the 1870s. Who were their proprietors? What was their life like at these sporting camps? Where were they? How did people get there? In what ways did the sporting camps change over time? What became of these sporting camps? Section D contents General access to and development on the watershed Travel from Bangor to the departure points of Milo, Sebec, Dover-Foxcroft, Monson, Shirley, and Greenville; and the accommodations in these communities Sporting and private camps at: Sebec Lake, Lake Onawa, Long Pond, Long Pond Stream, Blanchard, Abbot, Shirley, and Wilson Pond

    Within Katahdin’s Realm: Log Drives and Sporting Camps - Chapter 11: On Chief Jo-Mary’s Lands, and Epilogue, Sources of Information, Names and Related Information, and Glossary

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    This book’s historical journey on Maine’s West Branch of the Penobscot River and its tributaries is in two parts, logging (chapters 1-7) and sporting camps (chapters 8-11), all of which Fogler Library hosts at its Digital Commons. The journey starts in 1825 when the first loggers began cutting along the river and driving their logs more than 70 river miles to the Bangor sawmills. It ends 151 years later in 1976, the year of the last drive. Maine’s sporting camp history in this region started with enterprising loggers and teamsters who were also trappers and guides who beginning about 1870 took adventurous persons to fishing and hunting locations where they used tents or small trapper’s camps or logging camps. By the early 1890s their camps became known as sporting camps. With few exceptions, I have included structures built through 1920. The text moves the reader upstream beginning where the Penobscot River forks at Nicatou Island with the East Branch leading north and the West Branch heading west-northwest. The reader travels up the West Branch into the Lower Chain Lakes and back into the river flowing under the shadow of Mount Katahdin to the Ripogenus Lake outlet where the journey ends. Along the way, each tributary is explored. The tributaries include Nollesemic Stream; Millinocket Stream and Lake, Sandy Stream; Nahmakanta, Rainbow and Pollywog streams; the Debsconeag Lakes chain; Abol, Katahdin, and Foss and Knowlton streams; and Jo-Mary Lakes, and Cooper and Pratt Brooks. The Introduction, Acknowledgements, and Table of Contents for all 11 chapters accompany chapter 1. Chapter 11 includes these subsections: At Upper Jo-Mary Lake At Middle Jo-Mary Lake At Lower Jo-Mary Lake At Yoke Ponds Also included in this file: Epilogue Sources of Information Names and Related Information Glossar

    Within Katahdin’s Realm: Log Drives and Sporting Camps - Chapter 09: Millinocket Station North to Basin Ponds

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    This book’s historical journey on Maine’s West Branch of the Penobscot River and its tributaries is in two parts, logging (chapters 1-7) and sporting camps (chapters 8-11), all of which Fogler Library hosts at its Digital Commons. The journey starts in 1825 when the first loggers began cutting along the river and driving their logs more than 70 river miles to the Bangor sawmills. It ends 151 years later in 1976, the year of the last drive. Maine’s sporting camp history in this region started with enterprising loggers and teamsters who were also trappers and guides who beginning about 1870 took adventurous persons to fishing and hunting locations where they used tents or small trapper’s camps or logging camps. By the early 1890s their camps became known as sporting camps. With few exceptions, I have included structures built through 1920. The text moves the reader upstream beginning where the Penobscot River forks at Nicatou Island with the East Branch leading north and the West Branch heading west-northwest. The reader travels up the West Branch into the Lower Chain Lakes and back into the river flowing under the shadow of Mount Katahdin to the Ripogenus Lake outlet where the journey ends. Along the way, each tributary is explored. The tributaries include Nollesemic Stream; Millinocket Stream and Lake, Sandy Stream; Nahmakanta, Rainbow and Pollywog streams; the Debsconeag Lakes chain; Abol, Katahdin, and Foss and Knowlton streams; and Jo-Mary Lakes, and Cooper and Pratt Brooks. The Introduction, Acknowledgements, and Table of Contents for all 11 chapters accompany chapter 1. The Epilogue, Sources of Information, Names and Related Information, and Glossary are with chapter 11. Chapter 9 includes these subsections: Camps on Millinocket Lake Camps at Millinocket Station, Togue Ponds, Togue Stream, and Sandy Stream Drainag
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